Home / 459,004,200.30-688,506,300.45-418,827,260.70

Finding the Fourth Proportional to 459,004,200.30, 688,506,300.45 and 418,827,260.70

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Solution

The fourth proportional to 459,004,200.30, 688,506,300.45 and 418,827,260.70 is: 628,240,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,004,200.30 : 688,506,300.45 = 418,827,260.70 : x
  2. Step 2: Convert to fraction form
    459,004,200.30/688,506,300.45 = 418,827,260.70/x
  3. Step 3: Cross multiply
    459,004,200.30x = 688,506,300.45 × 418,827,260.70
  4. Step 4: Simplify right side
    459,004,200.30x = 288,365,207,792,164,672
  5. Step 5: Solve for x
    x = 288,365,207,792,164,672/459,004,200.30
  6. Step 6: Final answer
    x = 628,240,891.05

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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.