Home / 708,516,426.45-977,947,142.22-411,254,437.08

Finding the Fourth Proportional to 708,516,426.45, 977,947,142.22 and 411,254,437.08

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Solution

The fourth proportional to 708,516,426.45, 977,947,142.22 and 411,254,437.08 is: 567,644,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,516,426.45 : 977,947,142.22 = 411,254,437.08 : x
  2. Step 2: Convert to fraction form
    708,516,426.45/977,947,142.22 = 411,254,437.08/x
  3. Step 3: Cross multiply
    708,516,426.45x = 977,947,142.22 × 411,254,437.08
  4. Step 4: Simplify right side
    708,516,426.45x = 402,185,101,467,680,768
  5. Step 5: Solve for x
    x = 402,185,101,467,680,768/708,516,426.45
  6. Step 6: Final answer
    x = 567,644,004.36

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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.