Home / 862,464,672.60-1,293,697,008.90-655,840,411.80

Finding the Fourth Proportional to 862,464,672.60, 1,293,697,008.90 and 655,840,411.80

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Solution

The fourth proportional to 862,464,672.60, 1,293,697,008.90 and 655,840,411.80 is: 983,760,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,464,672.60 : 1,293,697,008.90 = 655,840,411.80 : x
  2. Step 2: Convert to fraction form
    862,464,672.60/1,293,697,008.90 = 655,840,411.80/x
  3. Step 3: Cross multiply
    862,464,672.60x = 1,293,697,008.90 × 655,840,411.80
  4. Step 4: Simplify right side
    862,464,672.60x = 848,458,779,061,404,288
  5. Step 5: Solve for x
    x = 848,458,779,061,404,288/862,464,672.60
  6. Step 6: Final answer
    x = 983,760,617.70

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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.