Home / 30,390,920.60-45,547,673.70-12,419,720.60

Finding the Fourth Proportional to 30,390,920.60, 45,547,673.70 and 12,419,720.60

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Solution

The fourth proportional to 30,390,920.60, 45,547,673.70 and 12,419,720.60 is: 18,613,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390,920.60 : 45,547,673.70 = 12,419,720.60 : x
  2. Step 2: Convert to fraction form
    30,390,920.60/45,547,673.70 = 12,419,720.60/x
  3. Step 3: Cross multiply
    30,390,920.60x = 45,547,673.70 × 12,419,720.60
  4. Step 4: Simplify right side
    30,390,920.60x = 565,689,381,333,968.25
  5. Step 5: Solve for x
    x = 565,689,381,333,968.25/30,390,920.60
  6. Step 6: Final answer
    x = 18,613,762.60

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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.