Home / 660,106,812.20-990,160,218.30-585,492,495.80

Finding the Fourth Proportional to 660,106,812.20, 990,160,218.30 and 585,492,495.80

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Solution

The fourth proportional to 660,106,812.20, 990,160,218.30 and 585,492,495.80 is: 878,238,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,106,812.20 : 990,160,218.30 = 585,492,495.80 : x
  2. Step 2: Convert to fraction form
    660,106,812.20/990,160,218.30 = 585,492,495.80/x
  3. Step 3: Cross multiply
    660,106,812.20x = 990,160,218.30 × 585,492,495.80
  4. Step 4: Simplify right side
    660,106,812.20x = 579,731,377,454,339,712
  5. Step 5: Solve for x
    x = 579,731,377,454,339,712/660,106,812.20
  6. Step 6: Final answer
    x = 878,238,743.70

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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.