Home / 130,573,413-180,191,310.12-71,834,821.20

Finding the Fourth Proportional to 130,573,413, 180,191,310.12 and 71,834,821.20

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Solution

The fourth proportional to 130,573,413, 180,191,310.12 and 71,834,821.20 is: 99,132,053.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,573,413 : 180,191,310.12 = 71,834,821.20 : x
  2. Step 2: Convert to fraction form
    130,573,413/180,191,310.12 = 71,834,821.20/x
  3. Step 3: Cross multiply
    130,573,413x = 180,191,310.12 × 71,834,821.20
  4. Step 4: Simplify right side
    130,573,413x = 12,944,010,544,263,952
  5. Step 5: Solve for x
    x = 12,944,010,544,263,952/130,573,413
  6. Step 6: Final answer
    x = 99,132,053.36

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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.