Home / 129,038,280.80-193,557,421.20-115,899,951.20

Finding the Fourth Proportional to 129,038,280.80, 193,557,421.20 and 115,899,951.20

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Solution

The fourth proportional to 129,038,280.80, 193,557,421.20 and 115,899,951.20 is: 173,849,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,038,280.80 : 193,557,421.20 = 115,899,951.20 : x
  2. Step 2: Convert to fraction form
    129,038,280.80/193,557,421.20 = 115,899,951.20/x
  3. Step 3: Cross multiply
    129,038,280.80x = 193,557,421.20 × 115,899,951.20
  4. Step 4: Simplify right side
    129,038,280.80x = 22,433,295,671,477,844
  5. Step 5: Solve for x
    x = 22,433,295,671,477,844/129,038,280.80
  6. Step 6: Final answer
    x = 173,849,926.80

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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.