Home / 84,258,002.80-126,387,004.20-51,804,672.40

Finding the Fourth Proportional to 84,258,002.80, 126,387,004.20 and 51,804,672.40

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Solution

The fourth proportional to 84,258,002.80, 126,387,004.20 and 51,804,672.40 is: 77,707,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,258,002.80 : 126,387,004.20 = 51,804,672.40 : x
  2. Step 2: Convert to fraction form
    84,258,002.80/126,387,004.20 = 51,804,672.40/x
  3. Step 3: Cross multiply
    84,258,002.80x = 126,387,004.20 × 51,804,672.40
  4. Step 4: Simplify right side
    84,258,002.80x = 6,547,437,348,198,424
  5. Step 5: Solve for x
    x = 6,547,437,348,198,424/84,258,002.80
  6. Step 6: Final answer
    x = 77,707,008.60

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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.