Home / 10,077,716,376.40-15,116,574,564.60-5,118,734,117.20

Finding the Fourth Proportional to 10,077,716,376.40, 15,116,574,564.60 and 5,118,734,117.20

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Solution

The fourth proportional to 10,077,716,376.40, 15,116,574,564.60 and 5,118,734,117.20 is: 7,678,101,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,077,716,376.40 : 15,116,574,564.60 = 5,118,734,117.20 : x
  2. Step 2: Convert to fraction form
    10,077,716,376.40/15,116,574,564.60 = 5,118,734,117.20/x
  3. Step 3: Cross multiply
    10,077,716,376.40x = 15,116,574,564.60 × 5,118,734,117.20
  4. Step 4: Simplify right side
    10,077,716,376.40x = 77,377,725,959,015,759,872
  5. Step 5: Solve for x
    x = 77,377,725,959,015,759,872/10,077,716,376.40
  6. Step 6: Final answer
    x = 7,678,101,175.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.