Home / 18,120,946.51-25,006,909.83-9,972,184.51

Finding the Fourth Proportional to 18,120,946.51, 25,006,909.83 and 9,972,184.51

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Solution

The fourth proportional to 18,120,946.51, 25,006,909.83 and 9,972,184.51 is: 13,761,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,946.51 : 25,006,909.83 = 9,972,184.51 : x
  2. Step 2: Convert to fraction form
    18,120,946.51/25,006,909.83 = 9,972,184.51/x
  3. Step 3: Cross multiply
    18,120,946.51x = 25,006,909.83 × 9,972,184.51
  4. Step 4: Simplify right side
    18,120,946.51x = 249,373,518,849,692.72
  5. Step 5: Solve for x
    x = 249,373,518,849,692.72/18,120,946.51
  6. Step 6: Final answer
    x = 13,761,616.63

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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.