Home / 90,507,215.20-124,904,069.76-53,339,064.08

Finding the Fourth Proportional to 90,507,215.20, 124,904,069.76 and 53,339,064.08

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Solution

The fourth proportional to 90,507,215.20, 124,904,069.76 and 53,339,064.08 is: 73,610,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507,215.20 : 124,904,069.76 = 53,339,064.08 : x
  2. Step 2: Convert to fraction form
    90,507,215.20/124,904,069.76 = 53,339,064.08/x
  3. Step 3: Cross multiply
    90,507,215.20x = 124,904,069.76 × 53,339,064.08
  4. Step 4: Simplify right side
    90,507,215.20x = 6,662,266,180,781,430
  5. Step 5: Solve for x
    x = 6,662,266,180,781,430/90,507,215.20
  6. Step 6: Final answer
    x = 73,610,332.24

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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.