Home / 30,390,911.10-45,547,659.45-12,419,711.10

Finding the Fourth Proportional to 30,390,911.10, 45,547,659.45 and 12,419,711.10

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Solution

The fourth proportional to 30,390,911.10, 45,547,659.45 and 12,419,711.10 is: 18,613,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390,911.10 : 45,547,659.45 = 12,419,711.10 : x
  2. Step 2: Convert to fraction form
    30,390,911.10/45,547,659.45 = 12,419,711.10/x
  3. Step 3: Cross multiply
    30,390,911.10x = 45,547,659.45 × 12,419,711.10
  4. Step 4: Simplify right side
    30,390,911.10x = 565,688,771,650,184.88
  5. Step 5: Solve for x
    x = 565,688,771,650,184.88/30,390,911.10
  6. Step 6: Final answer
    x = 18,613,748.36

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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.