Home / 70,436,145.60-105,654,218.40-19,323,331.20

Finding the Fourth Proportional to 70,436,145.60, 105,654,218.40 and 19,323,331.20

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Solution

The fourth proportional to 70,436,145.60, 105,654,218.40 and 19,323,331.20 is: 28,984,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,436,145.60 : 105,654,218.40 = 19,323,331.20 : x
  2. Step 2: Convert to fraction form
    70,436,145.60/105,654,218.40 = 19,323,331.20/x
  3. Step 3: Cross multiply
    70,436,145.60x = 105,654,218.40 × 19,323,331.20
  4. Step 4: Simplify right side
    70,436,145.60x = 2,041,591,454,820,334
  5. Step 5: Solve for x
    x = 2,041,591,454,820,334/70,436,145.60
  6. Step 6: Final answer
    x = 28,984,996.80

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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.