Home / 10,137,253.78-15,249,031.55-9,189,142.81

Finding the Fourth Proportional to 10,137,253.78, 15,249,031.55 and 9,189,142.81

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Solution

The fourth proportional to 10,137,253.78, 15,249,031.55 and 9,189,142.81 is: 13,822,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137,253.78 : 15,249,031.55 = 9,189,142.81 : x
  2. Step 2: Convert to fraction form
    10,137,253.78/15,249,031.55 = 9,189,142.81/x
  3. Step 3: Cross multiply
    10,137,253.78x = 15,249,031.55 × 9,189,142.81
  4. Step 4: Simplify right side
    10,137,253.78x = 140,125,528,577,536.64
  5. Step 5: Solve for x
    x = 140,125,528,577,536.64/10,137,253.78
  6. Step 6: Final answer
    x = 13,822,829.30

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1.5x scale

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.