Home / 125,341,953.95-172,972,522.51-78,326,327.93

Finding the Fourth Proportional to 125,341,953.95, 172,972,522.51 and 78,326,327.93

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Solution

The fourth proportional to 125,341,953.95, 172,972,522.51 and 78,326,327.93 is: 108,090,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,341,953.95 : 172,972,522.51 = 78,326,327.93 : x
  2. Step 2: Convert to fraction form
    125,341,953.95/172,972,522.51 = 78,326,327.93/x
  3. Step 3: Cross multiply
    125,341,953.95x = 172,972,522.51 × 78,326,327.93
  4. Step 4: Simplify right side
    125,341,953.95x = 13,548,302,519,936,888
  5. Step 5: Solve for x
    x = 13,548,302,519,936,888/125,341,953.95
  6. Step 6: Final answer
    x = 108,090,723.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.