Home / 139,730,806.60-209,596,209.90-79,264,630.60

Finding the Fourth Proportional to 139,730,806.60, 209,596,209.90 and 79,264,630.60

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Solution

The fourth proportional to 139,730,806.60, 209,596,209.90 and 79,264,630.60 is: 118,896,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,730,806.60 : 209,596,209.90 = 79,264,630.60 : x
  2. Step 2: Convert to fraction form
    139,730,806.60/209,596,209.90 = 79,264,630.60/x
  3. Step 3: Cross multiply
    139,730,806.60x = 209,596,209.90 × 79,264,630.60
  4. Step 4: Simplify right side
    139,730,806.60x = 16,613,566,152,883,562
  5. Step 5: Solve for x
    x = 16,613,566,152,883,562/139,730,806.60
  6. Step 6: Final answer
    x = 118,896,945.90

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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.