Home / 66,430,272.60-99,645,408.90-42,276,279.18

Finding the Fourth Proportional to 66,430,272.60, 99,645,408.90 and 42,276,279.18

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Solution

The fourth proportional to 66,430,272.60, 99,645,408.90 and 42,276,279.18 is: 63,414,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,272.60 : 99,645,408.90 = 42,276,279.18 : x
  2. Step 2: Convert to fraction form
    66,430,272.60/99,645,408.90 = 42,276,279.18/x
  3. Step 3: Cross multiply
    66,430,272.60x = 99,645,408.90 × 42,276,279.18
  4. Step 4: Simplify right side
    66,430,272.60x = 4,212,637,125,661,657
  5. Step 5: Solve for x
    x = 4,212,637,125,661,657/66,430,272.60
  6. Step 6: Final answer
    x = 63,414,418.77

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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.