Home / 53,012,139.60-79,518,209.40-42,934,443.60

Finding the Fourth Proportional to 53,012,139.60, 79,518,209.40 and 42,934,443.60

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Solution

The fourth proportional to 53,012,139.60, 79,518,209.40 and 42,934,443.60 is: 64,401,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012,139.60 : 79,518,209.40 = 42,934,443.60 : x
  2. Step 2: Convert to fraction form
    53,012,139.60/79,518,209.40 = 42,934,443.60/x
  3. Step 3: Cross multiply
    53,012,139.60x = 79,518,209.40 × 42,934,443.60
  4. Step 4: Simplify right side
    53,012,139.60x = 3,414,070,076,657,290
  5. Step 5: Solve for x
    x = 3,414,070,076,657,290/53,012,139.60
  6. Step 6: Final answer
    x = 64,401,665.40

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Double scale
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Similar ratio
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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.