Home / 30,803,366.20-42,495,301.72-18,573,428.92

Finding the Fourth Proportional to 30,803,366.20, 42,495,301.72 and 18,573,428.92

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Solution

The fourth proportional to 30,803,366.20, 42,495,301.72 and 18,573,428.92 is: 25,623,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803,366.20 : 42,495,301.72 = 18,573,428.92 : x
  2. Step 2: Convert to fraction form
    30,803,366.20/42,495,301.72 = 18,573,428.92/x
  3. Step 3: Cross multiply
    30,803,366.20x = 42,495,301.72 × 18,573,428.92
  4. Step 4: Simplify right side
    30,803,366.20x = 789,283,465,930,373.75
  5. Step 5: Solve for x
    x = 789,283,465,930,373.75/30,803,366.20
  6. Step 6: Final answer
    x = 25,623,286.13

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Double scale
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1.5x scale

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.