Home / 851,011,860.72-1,274,730,133.40-539,959,366.19

Finding the Fourth Proportional to 851,011,860.72, 1,274,730,133.40 and 539,959,366.19

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Solution

The fourth proportional to 851,011,860.72, 1,274,730,133.40 and 539,959,366.19 is: 808,804,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,011,860.72 : 1,274,730,133.40 = 539,959,366.19 : x
  2. Step 2: Convert to fraction form
    851,011,860.72/1,274,730,133.40 = 539,959,366.19/x
  3. Step 3: Cross multiply
    851,011,860.72x = 1,274,730,133.40 × 539,959,366.19
  4. Step 4: Simplify right side
    851,011,860.72x = 688,302,474,896,497,024
  5. Step 5: Solve for x
    x = 688,302,474,896,497,024/851,011,860.72
  6. Step 6: Final answer
    x = 808,804,796.58

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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.