Home / 72,864,065.40-109,296,098.10-19,011,377.40

Finding the Fourth Proportional to 72,864,065.40, 109,296,098.10 and 19,011,377.40

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Solution

The fourth proportional to 72,864,065.40, 109,296,098.10 and 19,011,377.40 is: 28,517,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864,065.40 : 109,296,098.10 = 19,011,377.40 : x
  2. Step 2: Convert to fraction form
    72,864,065.40/109,296,098.10 = 19,011,377.40/x
  3. Step 3: Cross multiply
    72,864,065.40x = 109,296,098.10 × 19,011,377.40
  4. Step 4: Simplify right side
    72,864,065.40x = 2,077,869,369,326,522.75
  5. Step 5: Solve for x
    x = 2,077,869,369,326,522.75/72,864,065.40
  6. Step 6: Final answer
    x = 28,517,066.10

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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.