Home / 191,687,206.60-287,530,809.90-131,221,030.60

Finding the Fourth Proportional to 191,687,206.60, 287,530,809.90 and 131,221,030.60

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Solution

The fourth proportional to 191,687,206.60, 287,530,809.90 and 131,221,030.60 is: 196,831,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,687,206.60 : 287,530,809.90 = 131,221,030.60 : x
  2. Step 2: Convert to fraction form
    191,687,206.60/287,530,809.90 = 131,221,030.60/x
  3. Step 3: Cross multiply
    191,687,206.60x = 287,530,809.90 × 131,221,030.60
  4. Step 4: Simplify right side
    191,687,206.60x = 37,730,089,204,330,680
  5. Step 5: Solve for x
    x = 37,730,089,204,330,680/191,687,206.60
  6. Step 6: Final answer
    x = 196,831,545.90

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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.