Home / 708,516,429.45-977,947,146.36-411,254,440.08

Finding the Fourth Proportional to 708,516,429.45, 977,947,146.36 and 411,254,440.08

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Solution

The fourth proportional to 708,516,429.45, 977,947,146.36 and 411,254,440.08 is: 567,644,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,516,429.45 : 977,947,146.36 = 411,254,440.08 : x
  2. Step 2: Convert to fraction form
    708,516,429.45/977,947,146.36 = 411,254,440.08/x
  3. Step 3: Cross multiply
    708,516,429.45x = 977,947,146.36 × 411,254,440.08
  4. Step 4: Simplify right side
    708,516,429.45x = 402,185,106,104,115,584
  5. Step 5: Solve for x
    x = 402,185,106,104,115,584/708,516,429.45
  6. Step 6: Final answer
    x = 567,644,008.50

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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.