Home / 125,358,148.16-187,938,326.15-79,202,730.89

Finding the Fourth Proportional to 125,358,148.16, 187,938,326.15 and 79,202,730.89

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Solution

The fourth proportional to 125,358,148.16, 187,938,326.15 and 79,202,730.89 is: 118,741,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,358,148.16 : 187,938,326.15 = 79,202,730.89 : x
  2. Step 2: Convert to fraction form
    125,358,148.16/187,938,326.15 = 79,202,730.89/x
  3. Step 3: Cross multiply
    125,358,148.16x = 187,938,326.15 × 79,202,730.89
  4. Step 4: Simplify right side
    125,358,148.16x = 14,885,228,670,346,342
  5. Step 5: Solve for x
    x = 14,885,228,670,346,342/125,358,148.16
  6. Step 6: Final answer
    x = 118,741,612.64

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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.