Home / 18,677,000.40-28,019,437.20-7,888,748.10

Finding the Fourth Proportional to 18,677,000.40, 28,019,437.20 and 7,888,748.10

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Solution

The fourth proportional to 18,677,000.40, 28,019,437.20 and 7,888,748.10 is: 11,834,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,000.40 : 28,019,437.20 = 7,888,748.10 : x
  2. Step 2: Convert to fraction form
    18,677,000.40/28,019,437.20 = 7,888,748.10/x
  3. Step 3: Cross multiply
    18,677,000.40x = 28,019,437.20 × 7,888,748.10
  4. Step 4: Simplify right side
    18,677,000.40x = 221,038,281,974,569.31
  5. Step 5: Solve for x
    x = 221,038,281,974,569.31/18,677,000.40
  6. Step 6: Final answer
    x = 11,834,784.88

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1.5x scale

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.