Home / 808,641,740.55-1,209,771,140.85-612,470,260.83

Finding the Fourth Proportional to 808,641,740.55, 1,209,771,140.85 and 612,470,260.83

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Solution

The fourth proportional to 808,641,740.55, 1,209,771,140.85 and 612,470,260.83 is: 916,288,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,641,740.55 : 1,209,771,140.85 = 612,470,260.83 : x
  2. Step 2: Convert to fraction form
    808,641,740.55/1,209,771,140.85 = 612,470,260.83/x
  3. Step 3: Cross multiply
    808,641,740.55x = 1,209,771,140.85 × 612,470,260.83
  4. Step 4: Simplify right side
    808,641,740.55x = 740,948,846,181,006,208
  5. Step 5: Solve for x
    x = 740,948,846,181,006,208/808,641,740.55
  6. Step 6: Final answer
    x = 916,288,152.13

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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.