Home / 127,046,979.90-190,712,187.45-118,721,070.90

Finding the Fourth Proportional to 127,046,979.90, 190,712,187.45 and 118,721,070.90

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Solution

The fourth proportional to 127,046,979.90, 190,712,187.45 and 118,721,070.90 is: 178,214,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,046,979.90 : 190,712,187.45 = 118,721,070.90 : x
  2. Step 2: Convert to fraction form
    127,046,979.90/190,712,187.45 = 118,721,070.90/x
  3. Step 3: Cross multiply
    127,046,979.90x = 190,712,187.45 × 118,721,070.90
  4. Step 4: Simplify right side
    127,046,979.90x = 22,641,555,127,745,540
  5. Step 5: Solve for x
    x = 22,641,555,127,745,540/127,046,979.90
  6. Step 6: Final answer
    x = 178,214,036.62

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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.