Home / 21,387,812.10-32,081,718.15-12,884,756.10

Finding the Fourth Proportional to 21,387,812.10, 32,081,718.15 and 12,884,756.10

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Solution

The fourth proportional to 21,387,812.10, 32,081,718.15 and 12,884,756.10 is: 19,327,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,812.10 : 32,081,718.15 = 12,884,756.10 : x
  2. Step 2: Convert to fraction form
    21,387,812.10/32,081,718.15 = 12,884,756.10/x
  3. Step 3: Cross multiply
    21,387,812.10x = 32,081,718.15 × 12,884,756.10
  4. Step 4: Simplify right side
    21,387,812.10x = 413,365,113,631,693.19
  5. Step 5: Solve for x
    x = 413,365,113,631,693.19/21,387,812.10
  6. Step 6: Final answer
    x = 19,327,134.15

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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.