Home / 913,558,420.91-1,260,677,995.59-517,072,897.06

Finding the Fourth Proportional to 913,558,420.91, 1,260,677,995.59 and 517,072,897.06

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Solution

The fourth proportional to 913,558,420.91, 1,260,677,995.59 and 517,072,897.06 is: 713,542,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,558,420.91 : 1,260,677,995.59 = 517,072,897.06 : x
  2. Step 2: Convert to fraction form
    913,558,420.91/1,260,677,995.59 = 517,072,897.06/x
  3. Step 3: Cross multiply
    913,558,420.91x = 1,260,677,995.59 × 517,072,897.06
  4. Step 4: Simplify right side
    913,558,420.91x = 651,862,423,442,478,720
  5. Step 5: Solve for x
    x = 651,862,423,442,478,720/913,558,420.91
  6. Step 6: Final answer
    x = 713,542,132.09

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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.