Home / 927,276,437.60-1,390,914,656.40-280,960,200.80

Finding the Fourth Proportional to 927,276,437.60, 1,390,914,656.40 and 280,960,200.80

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Solution

The fourth proportional to 927,276,437.60, 1,390,914,656.40 and 280,960,200.80 is: 421,440,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,276,437.60 : 1,390,914,656.40 = 280,960,200.80 : x
  2. Step 2: Convert to fraction form
    927,276,437.60/1,390,914,656.40 = 280,960,200.80/x
  3. Step 3: Cross multiply
    927,276,437.60x = 1,390,914,656.40 × 280,960,200.80
  4. Step 4: Simplify right side
    927,276,437.60x = 390,791,661,157,807,040
  5. Step 5: Solve for x
    x = 390,791,661,157,807,040/927,276,437.60
  6. Step 6: Final answer
    x = 421,440,301.20

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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.