Home / 316,847,115.20-475,270,672.80-208,007,998.40

Finding the Fourth Proportional to 316,847,115.20, 475,270,672.80 and 208,007,998.40

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Solution

The fourth proportional to 316,847,115.20, 475,270,672.80 and 208,007,998.40 is: 312,011,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,847,115.20 : 475,270,672.80 = 208,007,998.40 : x
  2. Step 2: Convert to fraction form
    316,847,115.20/475,270,672.80 = 208,007,998.40/x
  3. Step 3: Cross multiply
    316,847,115.20x = 475,270,672.80 × 208,007,998.40
  4. Step 4: Simplify right side
    316,847,115.20x = 98,860,101,347,349,328
  5. Step 5: Solve for x
    x = 98,860,101,347,349,328/316,847,115.20
  6. Step 6: Final answer
    x = 312,011,997.60

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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.