Home / 10,778,990.10-16,168,485.15-9,786,966.90

Finding the Fourth Proportional to 10,778,990.10, 16,168,485.15 and 9,786,966.90

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Solution

The fourth proportional to 10,778,990.10, 16,168,485.15 and 9,786,966.90 is: 14,680,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,990.10 : 16,168,485.15 = 9,786,966.90 : x
  2. Step 2: Convert to fraction form
    10,778,990.10/16,168,485.15 = 9,786,966.90/x
  3. Step 3: Cross multiply
    10,778,990.10x = 16,168,485.15 × 9,786,966.90
  4. Step 4: Simplify right side
    10,778,990.10x = 158,240,428,986,191.53
  5. Step 5: Solve for x
    x = 158,240,428,986,191.53/10,778,990.10
  6. Step 6: Final answer
    x = 14,680,450.35

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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.