Home / 9,139,842.21-12,612,711.63-5,009,785.05

Finding the Fourth Proportional to 9,139,842.21, 12,612,711.63 and 5,009,785.05

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Solution

The fourth proportional to 9,139,842.21, 12,612,711.63 and 5,009,785.05 is: 6,913,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,842.21 : 12,612,711.63 = 5,009,785.05 : x
  2. Step 2: Convert to fraction form
    9,139,842.21/12,612,711.63 = 5,009,785.05/x
  3. Step 3: Cross multiply
    9,139,842.21x = 12,612,711.63 × 5,009,785.05
  4. Step 4: Simplify right side
    9,139,842.21x = 63,186,974,163,935.13
  5. Step 5: Solve for x
    x = 63,186,974,163,935.13/9,139,842.21
  6. Step 6: Final answer
    x = 6,913,355.04

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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.