Home / 129,347,312.60-178,046,223.63-112,798,239.86

Finding the Fourth Proportional to 129,347,312.60, 178,046,223.63 and 112,798,239.86

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Solution

The fourth proportional to 129,347,312.60, 178,046,223.63 and 112,798,239.86 is: 155,266,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,347,312.60 : 178,046,223.63 = 112,798,239.86 : x
  2. Step 2: Convert to fraction form
    129,347,312.60/178,046,223.63 = 112,798,239.86/x
  3. Step 3: Cross multiply
    129,347,312.60x = 178,046,223.63 × 112,798,239.86
  4. Step 4: Simplify right side
    129,347,312.60x = 20,083,300,639,206,060
  5. Step 5: Solve for x
    x = 20,083,300,639,206,060/129,347,312.60
  6. Step 6: Final answer
    x = 155,266,470.06

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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.