Home / 862,308,016.60-1,293,650,981.70-425,817,808.60

Finding the Fourth Proportional to 862,308,016.60, 1,293,650,981.70 and 425,817,808.60

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Solution

The fourth proportional to 862,308,016.60, 1,293,650,981.70 and 425,817,808.60 is: 638,820,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,308,016.60 : 1,293,650,981.70 = 425,817,808.60 : x
  2. Step 2: Convert to fraction form
    862,308,016.60/1,293,650,981.70 = 425,817,808.60/x
  3. Step 3: Cross multiply
    862,308,016.60x = 1,293,650,981.70 × 425,817,808.60
  4. Step 4: Simplify right side
    862,308,016.60x = 550,859,626,120,732,736
  5. Step 5: Solve for x
    x = 550,859,626,120,732,736/862,308,016.60
  6. Step 6: Final answer
    x = 638,820,021.98

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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.