Home / 144,121,807.80-216,248,588.19-78,444,557.55

Finding the Fourth Proportional to 144,121,807.80, 216,248,588.19 and 78,444,557.55

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Solution

The fourth proportional to 144,121,807.80, 216,248,588.19 and 78,444,557.55 is: 117,702,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,121,807.80 : 216,248,588.19 = 78,444,557.55 : x
  2. Step 2: Convert to fraction form
    144,121,807.80/216,248,588.19 = 78,444,557.55/x
  3. Step 3: Cross multiply
    144,121,807.80x = 216,248,588.19 × 78,444,557.55
  4. Step 4: Simplify right side
    144,121,807.80x = 16,963,524,821,376,704
  5. Step 5: Solve for x
    x = 16,963,524,821,376,704/144,121,807.80
  6. Step 6: Final answer
    x = 117,702,692.47

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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.