Home / 90,825,856.65-136,238,784.98-74,683,336.28

Finding the Fourth Proportional to 90,825,856.65, 136,238,784.98 and 74,683,336.28

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Solution

The fourth proportional to 90,825,856.65, 136,238,784.98 and 74,683,336.28 is: 112,025,004.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,856.65 : 136,238,784.98 = 74,683,336.28 : x
  2. Step 2: Convert to fraction form
    90,825,856.65/136,238,784.98 = 74,683,336.28/x
  3. Step 3: Cross multiply
    90,825,856.65x = 136,238,784.98 × 74,683,336.28
  4. Step 4: Simplify right side
    90,825,856.65x = 10,174,766,991,985,342
  5. Step 5: Solve for x
    x = 10,174,766,991,985,342/90,825,856.65
  6. Step 6: Final answer
    x = 112,025,004.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.