Home / 260,595,280.20-390,892,606.65-66,506,716.20

Finding the Fourth Proportional to 260,595,280.20, 390,892,606.65 and 66,506,716.20

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Solution

The fourth proportional to 260,595,280.20, 390,892,606.65 and 66,506,716.20 is: 99,759,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,595,280.20 : 390,892,606.65 = 66,506,716.20 : x
  2. Step 2: Convert to fraction form
    260,595,280.20/390,892,606.65 = 66,506,716.20/x
  3. Step 3: Cross multiply
    260,595,280.20x = 390,892,606.65 × 66,506,716.20
  4. Step 4: Simplify right side
    260,595,280.20x = 25,996,983,655,149,784
  5. Step 5: Solve for x
    x = 25,996,983,655,149,784/260,595,280.20
  6. Step 6: Final answer
    x = 99,759,994.25

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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.