Home / 716,656,213,665.12-989,221,260,497.88-570,436,887,449.25

Finding the Fourth Proportional to 716,656,213,665.12, 989,221,260,497.88 and 570,436,887,449.25

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Solution

The fourth proportional to 716,656,213,665.12, 989,221,260,497.88 and 570,436,887,449.25 is: 787,390,503,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,656,213,665.12 : 989,221,260,497.88 = 570,436,887,449.25 : x
  2. Step 2: Convert to fraction form
    716,656,213,665.12/989,221,260,497.88 = 570,436,887,449.25/x
  3. Step 3: Cross multiply
    716,656,213,665.12x = 989,221,260,497.88 × 570,436,887,449.25
  4. Step 4: Simplify right side
    716,656,213,665.12x = 564,288,296,837,034,390,061,056
  5. Step 5: Solve for x
    x = 564,288,296,837,034,390,061,056/716,656,213,665.12
  6. Step 6: Final answer
    x = 787,390,503,392.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.