Home / 558,722,656.31-838,056,124.76-208,943,008.88

Finding the Fourth Proportional to 558,722,656.31, 838,056,124.76 and 208,943,008.88

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Solution

The fourth proportional to 558,722,656.31, 838,056,124.76 and 208,943,008.88 is: 313,404,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,722,656.31 : 838,056,124.76 = 208,943,008.88 : x
  2. Step 2: Convert to fraction form
    558,722,656.31/838,056,124.76 = 208,943,008.88/x
  3. Step 3: Cross multiply
    558,722,656.31x = 838,056,124.76 × 208,943,008.88
  4. Step 4: Simplify right side
    558,722,656.31x = 175,105,968,312,432,064
  5. Step 5: Solve for x
    x = 175,105,968,312,432,064/558,722,656.31
  6. Step 6: Final answer
    x = 313,404,094.74

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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.