Home / 208,010,729.40-312,016,094.10-156,614,479.80

Finding the Fourth Proportional to 208,010,729.40, 312,016,094.10 and 156,614,479.80

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Solution

The fourth proportional to 208,010,729.40, 312,016,094.10 and 156,614,479.80 is: 234,921,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,010,729.40 : 312,016,094.10 = 156,614,479.80 : x
  2. Step 2: Convert to fraction form
    208,010,729.40/312,016,094.10 = 156,614,479.80/x
  3. Step 3: Cross multiply
    208,010,729.40x = 312,016,094.10 × 156,614,479.80
  4. Step 4: Simplify right side
    208,010,729.40x = 48,866,238,266,699,360
  5. Step 5: Solve for x
    x = 48,866,238,266,699,360/208,010,729.40
  6. Step 6: Final answer
    x = 234,921,719.70

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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.