Home / 18,931,728-28,397,590.16-4,554,795.76

Finding the Fourth Proportional to 18,931,728, 28,397,590.16 and 4,554,795.76

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Solution

The fourth proportional to 18,931,728, 28,397,590.16 and 4,554,795.76 is: 6,832,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931,728 : 28,397,590.16 = 4,554,795.76 : x
  2. Step 2: Convert to fraction form
    18,931,728/28,397,590.16 = 4,554,795.76/x
  3. Step 3: Cross multiply
    18,931,728x = 28,397,590.16 × 4,554,795.76
  4. Step 4: Simplify right side
    18,931,728x = 129,345,223,254,985.72
  5. Step 5: Solve for x
    x = 129,345,223,254,985.72/18,931,728
  6. Step 6: Final answer
    x = 6,832,193.20

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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.