Home / 207,120,557.60-310,432,004.40-85,889,607.20

Finding the Fourth Proportional to 207,120,557.60, 310,432,004.40 and 85,889,607.20

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Solution

The fourth proportional to 207,120,557.60, 310,432,004.40 and 85,889,607.20 is: 128,731,224.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,120,557.60 : 310,432,004.40 = 85,889,607.20 : x
  2. Step 2: Convert to fraction form
    207,120,557.60/310,432,004.40 = 85,889,607.20/x
  3. Step 3: Cross multiply
    207,120,557.60x = 310,432,004.40 × 85,889,607.20
  4. Step 4: Simplify right side
    207,120,557.60x = 26,662,882,920,224,672
  5. Step 5: Solve for x
    x = 26,662,882,920,224,672/207,120,557.60
  6. Step 6: Final answer
    x = 128,731,224.12

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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.