Home / 12,513,031.60-18,769,547.40-5,322,758.80

Finding the Fourth Proportional to 12,513,031.60, 18,769,547.40 and 5,322,758.80

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Solution

The fourth proportional to 12,513,031.60, 18,769,547.40 and 5,322,758.80 is: 7,984,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513,031.60 : 18,769,547.40 = 5,322,758.80 : x
  2. Step 2: Convert to fraction form
    12,513,031.60/18,769,547.40 = 5,322,758.80/x
  3. Step 3: Cross multiply
    12,513,031.60x = 18,769,547.40 × 5,322,758.80
  4. Step 4: Simplify right side
    12,513,031.60x = 99,905,773,595,367.11
  5. Step 5: Solve for x
    x = 99,905,773,595,367.11/12,513,031.60
  6. Step 6: Final answer
    x = 7,984,138.20

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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.