Home / 212,618,363.60-318,927,545.40-69,011,195.60

Finding the Fourth Proportional to 212,618,363.60, 318,927,545.40 and 69,011,195.60

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Solution

The fourth proportional to 212,618,363.60, 318,927,545.40 and 69,011,195.60 is: 103,516,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,618,363.60 : 318,927,545.40 = 69,011,195.60 : x
  2. Step 2: Convert to fraction form
    212,618,363.60/318,927,545.40 = 69,011,195.60/x
  3. Step 3: Cross multiply
    212,618,363.60x = 318,927,545.40 × 69,011,195.60
  4. Step 4: Simplify right side
    212,618,363.60x = 22,009,571,217,827,276
  5. Step 5: Solve for x
    x = 22,009,571,217,827,276/212,618,363.60
  6. Step 6: Final answer
    x = 103,516,793.40

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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.