Home / 30,390,930.10-45,547,687.95-12,419,730.10

Finding the Fourth Proportional to 30,390,930.10, 45,547,687.95 and 12,419,730.10

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Solution

The fourth proportional to 30,390,930.10, 45,547,687.95 and 12,419,730.10 is: 18,613,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390,930.10 : 45,547,687.95 = 12,419,730.10 : x
  2. Step 2: Convert to fraction form
    30,390,930.10/45,547,687.95 = 12,419,730.10/x
  3. Step 3: Cross multiply
    30,390,930.10x = 45,547,687.95 × 12,419,730.10
  4. Step 4: Simplify right side
    30,390,930.10x = 565,689,991,018,022.38
  5. Step 5: Solve for x
    x = 565,689,991,018,022.38/30,390,930.10
  6. Step 6: Final answer
    x = 18,613,776.85

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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.