Home / 561,104,921.20-841,657,381.80-172,893,175.60

Finding the Fourth Proportional to 561,104,921.20, 841,657,381.80 and 172,893,175.60

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Solution

The fourth proportional to 561,104,921.20, 841,657,381.80 and 172,893,175.60 is: 259,339,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,104,921.20 : 841,657,381.80 = 172,893,175.60 : x
  2. Step 2: Convert to fraction form
    561,104,921.20/841,657,381.80 = 172,893,175.60/x
  3. Step 3: Cross multiply
    561,104,921.20x = 841,657,381.80 × 172,893,175.60
  4. Step 4: Simplify right side
    561,104,921.20x = 145,516,817,506,583,616
  5. Step 5: Solve for x
    x = 145,516,817,506,583,616/561,104,921.20
  6. Step 6: Final answer
    x = 259,339,763.40

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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.