Home / 716,545,616,331.92-988,827,072,913.32-391,385,115,378.32

Finding the Fourth Proportional to 716,545,616,331.92, 988,827,072,913.32 and 391,385,115,378.32

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Solution

The fourth proportional to 716,545,616,331.92, 988,827,072,913.32 and 391,385,115,378.32 is: 540,108,248,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,545,616,331.92 : 988,827,072,913.32 = 391,385,115,378.32 : x
  2. Step 2: Convert to fraction form
    716,545,616,331.92/988,827,072,913.32 = 391,385,115,378.32/x
  3. Step 3: Cross multiply
    716,545,616,331.92x = 988,827,072,913.32 × 391,385,115,378.32
  4. Step 4: Simplify right side
    716,545,616,331.92x = 387,012,198,021,386,150,608,896
  5. Step 5: Solve for x
    x = 387,012,198,021,386,150,608,896/716,545,616,331.92
  6. Step 6: Final answer
    x = 540,108,248,798.66

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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.