Home / 788,680,470.09-1,082,679,724.45-676,977,384.75

Finding the Fourth Proportional to 788,680,470.09, 1,082,679,724.45 and 676,977,384.75

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Solution

The fourth proportional to 788,680,470.09, 1,082,679,724.45 and 676,977,384.75 is: 929,336,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,680,470.09 : 1,082,679,724.45 = 676,977,384.75 : x
  2. Step 2: Convert to fraction form
    788,680,470.09/1,082,679,724.45 = 676,977,384.75/x
  3. Step 3: Cross multiply
    788,680,470.09x = 1,082,679,724.45 × 676,977,384.75
  4. Step 4: Simplify right side
    788,680,470.09x = 732,949,688,371,213,312
  5. Step 5: Solve for x
    x = 732,949,688,371,213,312/788,680,470.09
  6. Step 6: Final answer
    x = 929,336,678.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.