Home / 120,604,296.70-180,818,248.80-38,676,540.21

Finding the Fourth Proportional to 120,604,296.70, 180,818,248.80 and 38,676,540.21

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Solution

The fourth proportional to 120,604,296.70, 180,818,248.80 and 38,676,540.21 is: 57,986,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,604,296.70 : 180,818,248.80 = 38,676,540.21 : x
  2. Step 2: Convert to fraction form
    120,604,296.70/180,818,248.80 = 38,676,540.21/x
  3. Step 3: Cross multiply
    120,604,296.70x = 180,818,248.80 × 38,676,540.21
  4. Step 4: Simplify right side
    120,604,296.70x = 6,993,424,270,414,985
  5. Step 5: Solve for x
    x = 6,993,424,270,414,985/120,604,296.70
  6. Step 6: Final answer
    x = 57,986,526.70

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1.5x scale

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.