Home / 8,642,913,114.42-11,920,639,454.46-7,439,302,880.28

Finding the Fourth Proportional to 8,642,913,114.42, 11,920,639,454.46 and 7,439,302,880.28

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Solution

The fourth proportional to 8,642,913,114.42, 11,920,639,454.46 and 7,439,302,880.28 is: 10,260,573,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,913,114.42 : 11,920,639,454.46 = 7,439,302,880.28 : x
  2. Step 2: Convert to fraction form
    8,642,913,114.42/11,920,639,454.46 = 7,439,302,880.28/x
  3. Step 3: Cross multiply
    8,642,913,114.42x = 11,920,639,454.46 × 7,439,302,880.28
  4. Step 4: Simplify right side
    8,642,913,114.42x = 88,681,247,428,343,676,928
  5. Step 5: Solve for x
    x = 88,681,247,428,343,676,928/8,642,913,114.42
  6. Step 6: Final answer
    x = 10,260,573,750.35

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Double scale
Find fourth proportional to 8,642,913,115.42, 11,920,639,455.84 and 7,439,302,881.28
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.