Home / 81,393,614.90-122,090,422.35-55,565,582.30

Finding the Fourth Proportional to 81,393,614.90, 122,090,422.35 and 55,565,582.30

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Solution

The fourth proportional to 81,393,614.90, 122,090,422.35 and 55,565,582.30 is: 83,348,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,393,614.90 : 122,090,422.35 = 55,565,582.30 : x
  2. Step 2: Convert to fraction form
    81,393,614.90/122,090,422.35 = 55,565,582.30/x
  3. Step 3: Cross multiply
    81,393,614.90x = 122,090,422.35 × 55,565,582.30
  4. Step 4: Simplify right side
    81,393,614.90x = 6,784,025,411,130,684
  5. Step 5: Solve for x
    x = 6,784,025,411,130,684/81,393,614.90
  6. Step 6: Final answer
    x = 83,348,373.45

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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.