Home / 25,890,718.80-38,860,961.40-13,125,637.20

Finding the Fourth Proportional to 25,890,718.80, 38,860,961.40 and 13,125,637.20

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Solution

The fourth proportional to 25,890,718.80, 38,860,961.40 and 13,125,637.20 is: 19,701,070.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890,718.80 : 38,860,961.40 = 13,125,637.20 : x
  2. Step 2: Convert to fraction form
    25,890,718.80/38,860,961.40 = 13,125,637.20/x
  3. Step 3: Cross multiply
    25,890,718.80x = 38,860,961.40 × 13,125,637.20
  4. Step 4: Simplify right side
    25,890,718.80x = 510,074,880,579,604.06
  5. Step 5: Solve for x
    x = 510,074,880,579,604.06/25,890,718.80
  6. Step 6: Final answer
    x = 19,701,070.66

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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.