Home / 30,287,237.60-45,430,856.40-18,343,301.60

Finding the Fourth Proportional to 30,287,237.60, 45,430,856.40 and 18,343,301.60

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Solution

The fourth proportional to 30,287,237.60, 45,430,856.40 and 18,343,301.60 is: 27,514,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287,237.60 : 45,430,856.40 = 18,343,301.60 : x
  2. Step 2: Convert to fraction form
    30,287,237.60/45,430,856.40 = 18,343,301.60/x
  3. Step 3: Cross multiply
    30,287,237.60x = 45,430,856.40 × 18,343,301.60
  4. Step 4: Simplify right side
    30,287,237.60x = 833,351,900,891,490.25
  5. Step 5: Solve for x
    x = 833,351,900,891,490.25/30,287,237.60
  6. Step 6: Final answer
    x = 27,514,952.40

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Similar ratio
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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.