Home / 30,227,788.80-45,341,683.20-19,478,246.40

Finding the Fourth Proportional to 30,227,788.80, 45,341,683.20 and 19,478,246.40

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Solution

The fourth proportional to 30,227,788.80, 45,341,683.20 and 19,478,246.40 is: 29,217,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,227,788.80 : 45,341,683.20 = 19,478,246.40 : x
  2. Step 2: Convert to fraction form
    30,227,788.80/45,341,683.20 = 19,478,246.40/x
  3. Step 3: Cross multiply
    30,227,788.80x = 45,341,683.20 × 19,478,246.40
  4. Step 4: Simplify right side
    30,227,788.80x = 883,176,477,560,340.50
  5. Step 5: Solve for x
    x = 883,176,477,560,340.50/30,227,788.80
  6. Step 6: Final answer
    x = 29,217,369.60

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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.