Home / 260,595,209.70-390,892,500.90-66,506,645.70

Finding the Fourth Proportional to 260,595,209.70, 390,892,500.90 and 66,506,645.70

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Solution

The fourth proportional to 260,595,209.70, 390,892,500.90 and 66,506,645.70 is: 99,759,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,595,209.70 : 390,892,500.90 = 66,506,645.70 : x
  2. Step 2: Convert to fraction form
    260,595,209.70/390,892,500.90 = 66,506,645.70/x
  3. Step 3: Cross multiply
    260,595,209.70x = 390,892,500.90 × 66,506,645.70
  4. Step 4: Simplify right side
    260,595,209.70x = 25,996,949,064,143,232
  5. Step 5: Solve for x
    x = 25,996,949,064,143,232/260,595,209.70
  6. Step 6: Final answer
    x = 99,759,888.50

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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.