Home / 12,840,833.34-17,719,966.08-7,039,416.78

Finding the Fourth Proportional to 12,840,833.34, 17,719,966.08 and 7,039,416.78

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Solution

The fourth proportional to 12,840,833.34, 17,719,966.08 and 7,039,416.78 is: 9,714,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840,833.34 : 17,719,966.08 = 7,039,416.78 : x
  2. Step 2: Convert to fraction form
    12,840,833.34/17,719,966.08 = 7,039,416.78/x
  3. Step 3: Cross multiply
    12,840,833.34x = 17,719,966.08 × 7,039,416.78
  4. Step 4: Simplify right side
    12,840,833.34x = 124,738,226,564,582.81
  5. Step 5: Solve for x
    x = 124,738,226,564,582.81/12,840,833.34
  6. Step 6: Final answer
    x = 9,714,184.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.