Home / 85,473,630.40-128,210,445.60-36,917,637.70

Finding the Fourth Proportional to 85,473,630.40, 128,210,445.60 and 36,917,637.70

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Solution

The fourth proportional to 85,473,630.40, 128,210,445.60 and 36,917,637.70 is: 55,376,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473,630.40 : 128,210,445.60 = 36,917,637.70 : x
  2. Step 2: Convert to fraction form
    85,473,630.40/128,210,445.60 = 36,917,637.70/x
  3. Step 3: Cross multiply
    85,473,630.40x = 128,210,445.60 × 36,917,637.70
  4. Step 4: Simplify right side
    85,473,630.40x = 4,733,226,780,016,359
  5. Step 5: Solve for x
    x = 4,733,226,780,016,359/85,473,630.40
  6. Step 6: Final answer
    x = 55,376,456.55

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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.