Home / 459,862,279.60-689,793,419.40-426,605,882.80

Finding the Fourth Proportional to 459,862,279.60, 689,793,419.40 and 426,605,882.80

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Solution

The fourth proportional to 459,862,279.60, 689,793,419.40 and 426,605,882.80 is: 639,908,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,862,279.60 : 689,793,419.40 = 426,605,882.80 : x
  2. Step 2: Convert to fraction form
    459,862,279.60/689,793,419.40 = 426,605,882.80/x
  3. Step 3: Cross multiply
    459,862,279.60x = 689,793,419.40 × 426,605,882.80
  4. Step 4: Simplify right side
    459,862,279.60x = 294,269,930,632,767,616
  5. Step 5: Solve for x
    x = 294,269,930,632,767,616/459,862,279.60
  6. Step 6: Final answer
    x = 639,908,824.20

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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.