Home / 839,808,001.30-1,259,712,001.95-809,196,999.70

Finding the Fourth Proportional to 839,808,001.30, 1,259,712,001.95 and 809,196,999.70

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Solution

The fourth proportional to 839,808,001.30, 1,259,712,001.95 and 809,196,999.70 is: 1,213,795,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,001.30 : 1,259,712,001.95 = 809,196,999.70 : x
  2. Step 2: Convert to fraction form
    839,808,001.30/1,259,712,001.95 = 809,196,999.70/x
  3. Step 3: Cross multiply
    839,808,001.30x = 1,259,712,001.95 × 809,196,999.70
  4. Step 4: Simplify right side
    839,808,001.30x = 1,019,355,172,464,020,608
  5. Step 5: Solve for x
    x = 1,019,355,172,464,020,608/839,808,001.30
  6. Step 6: Final answer
    x = 1,213,795,499.55

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1.5x scale

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.