Home / 40,278,316.60-55,583,911.02-21,943,545.40

Finding the Fourth Proportional to 40,278,316.60, 55,583,911.02 and 21,943,545.40

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Solution

The fourth proportional to 40,278,316.60, 55,583,911.02 and 21,943,545.40 is: 30,282,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278,316.60 : 55,583,911.02 = 21,943,545.40 : x
  2. Step 2: Convert to fraction form
    40,278,316.60/55,583,911.02 = 21,943,545.40/x
  3. Step 3: Cross multiply
    40,278,316.60x = 55,583,911.02 × 21,943,545.40
  4. Step 4: Simplify right side
    40,278,316.60x = 1,219,708,074,976,930.25
  5. Step 5: Solve for x
    x = 1,219,708,074,976,930.25/40,278,316.60
  6. Step 6: Final answer
    x = 30,282,002.28

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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.