Home / 30,390,779.10-45,547,461.45-12,419,579.10

Finding the Fourth Proportional to 30,390,779.10, 45,547,461.45 and 12,419,579.10

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Solution

The fourth proportional to 30,390,779.10, 45,547,461.45 and 12,419,579.10 is: 18,613,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390,779.10 : 45,547,461.45 = 12,419,579.10 : x
  2. Step 2: Convert to fraction form
    30,390,779.10/45,547,461.45 = 12,419,579.10/x
  3. Step 3: Cross multiply
    30,390,779.10x = 45,547,461.45 × 12,419,579.10
  4. Step 4: Simplify right side
    30,390,779.10x = 565,680,300,282,475.75
  5. Step 5: Solve for x
    x = 565,680,300,282,475.75/30,390,779.10
  6. Step 6: Final answer
    x = 18,613,550.46

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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.