Home / 851,011,864.22-1,274,730,138.65-539,959,369.69

Finding the Fourth Proportional to 851,011,864.22, 1,274,730,138.65 and 539,959,369.69

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Solution

The fourth proportional to 851,011,864.22, 1,274,730,138.65 and 539,959,369.69 is: 808,804,801.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,011,864.22 : 1,274,730,138.65 = 539,959,369.69 : x
  2. Step 2: Convert to fraction form
    851,011,864.22/1,274,730,138.65 = 539,959,369.69/x
  3. Step 3: Cross multiply
    851,011,864.22x = 1,274,730,138.65 × 539,959,369.69
  4. Step 4: Simplify right side
    851,011,864.22x = 688,302,482,190,300,416
  5. Step 5: Solve for x
    x = 688,302,482,190,300,416/851,011,864.22
  6. Step 6: Final answer
    x = 808,804,801.82

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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.