Home / 125,279,590.61-172,889,766.59-72,355,315.10

Finding the Fourth Proportional to 125,279,590.61, 172,889,766.59 and 72,355,315.10

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Solution

The fourth proportional to 125,279,590.61, 172,889,766.59 and 72,355,315.10 is: 99,852,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,279,590.61 : 172,889,766.59 = 72,355,315.10 : x
  2. Step 2: Convert to fraction form
    125,279,590.61/172,889,766.59 = 72,355,315.10/x
  3. Step 3: Cross multiply
    125,279,590.61x = 172,889,766.59 × 72,355,315.10
  4. Step 4: Simplify right side
    125,279,590.61x = 12,509,493,537,958,678
  5. Step 5: Solve for x
    x = 12,509,493,537,958,678/125,279,590.61
  6. Step 6: Final answer
    x = 99,852,605.49

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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.