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Finding the Fourth Proportional to 70,478,424.60, 105,692,753.70 and 25,041,701.40

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Solution

The fourth proportional to 70,478,424.60, 105,692,753.70 and 25,041,701.40 is: 37,553,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,478,424.60 : 105,692,753.70 = 25,041,701.40 : x
  2. Step 2: Convert to fraction form
    70,478,424.60/105,692,753.70 = 25,041,701.40/x
  3. Step 3: Cross multiply
    70,478,424.60x = 105,692,753.70 × 25,041,701.40
  4. Step 4: Simplify right side
    70,478,424.60x = 2,646,726,378,299,145
  5. Step 5: Solve for x
    x = 2,646,726,378,299,145/70,478,424.60
  6. Step 6: Final answer
    x = 37,553,710.85

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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.