Home / 55,358,836.20-83,038,254.30-18,955,127.70

Finding the Fourth Proportional to 55,358,836.20, 83,038,254.30 and 18,955,127.70

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Solution

The fourth proportional to 55,358,836.20, 83,038,254.30 and 18,955,127.70 is: 28,432,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358,836.20 : 83,038,254.30 = 18,955,127.70 : x
  2. Step 2: Convert to fraction form
    55,358,836.20/83,038,254.30 = 18,955,127.70/x
  3. Step 3: Cross multiply
    55,358,836.20x = 83,038,254.30 × 18,955,127.70
  4. Step 4: Simplify right side
    55,358,836.20x = 1,574,000,714,241,574
  5. Step 5: Solve for x
    x = 1,574,000,714,241,574/55,358,836.20
  6. Step 6: Final answer
    x = 28,432,691.55

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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.