Home / 139,730,815.60-209,596,223.40-79,264,639.60

Finding the Fourth Proportional to 139,730,815.60, 209,596,223.40 and 79,264,639.60

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Solution

The fourth proportional to 139,730,815.60, 209,596,223.40 and 79,264,639.60 is: 118,896,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,730,815.60 : 209,596,223.40 = 79,264,639.60 : x
  2. Step 2: Convert to fraction form
    139,730,815.60/209,596,223.40 = 79,264,639.60/x
  3. Step 3: Cross multiply
    139,730,815.60x = 209,596,223.40 × 79,264,639.60
  4. Step 4: Simplify right side
    139,730,815.60x = 16,613,569,109,322,086
  5. Step 5: Solve for x
    x = 16,613,569,109,322,086/139,730,815.60
  6. Step 6: Final answer
    x = 118,896,959.40

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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.