Home / 15,045,211,069.47-20,761,157,154.81-8,857,307,812.90

Finding the Fourth Proportional to 15,045,211,069.47, 20,761,157,154.81 and 8,857,307,812.90

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Solution

The fourth proportional to 15,045,211,069.47, 20,761,157,154.81 and 8,857,307,812.90 is: 12,222,358,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045,211,069.47 : 20,761,157,154.81 = 8,857,307,812.90 : x
  2. Step 2: Convert to fraction form
    15,045,211,069.47/20,761,157,154.81 = 8,857,307,812.90/x
  3. Step 3: Cross multiply
    15,045,211,069.47x = 20,761,157,154.81 × 8,857,307,812.90
  4. Step 4: Simplify right side
    15,045,211,069.47x = 183,887,959,472,143,368,192
  5. Step 5: Solve for x
    x = 183,887,959,472,143,368,192/15,045,211,069.47
  6. Step 6: Final answer
    x = 12,222,358,238.98

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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.