Home / 19,937,458.71-27,518,811.84-12,985,459.56

Finding the Fourth Proportional to 19,937,458.71, 27,518,811.84 and 12,985,459.56

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Solution

The fourth proportional to 19,937,458.71, 27,518,811.84 and 12,985,459.56 is: 17,923,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937,458.71 : 27,518,811.84 = 12,985,459.56 : x
  2. Step 2: Convert to fraction form
    19,937,458.71/27,518,811.84 = 12,985,459.56/x
  3. Step 3: Cross multiply
    19,937,458.71x = 27,518,811.84 × 12,985,459.56
  4. Step 4: Simplify right side
    19,937,458.71x = 357,344,418,287,569.19
  5. Step 5: Solve for x
    x = 357,344,418,287,569.19/19,937,458.71
  6. Step 6: Final answer
    x = 17,923,268.13

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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.