Home / 121,285,200.90-181,927,801.35-56,715,119.40

Finding the Fourth Proportional to 121,285,200.90, 181,927,801.35 and 56,715,119.40

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Solution

The fourth proportional to 121,285,200.90, 181,927,801.35 and 56,715,119.40 is: 85,072,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285,200.90 : 181,927,801.35 = 56,715,119.40 : x
  2. Step 2: Convert to fraction form
    121,285,200.90/181,927,801.35 = 56,715,119.40/x
  3. Step 3: Cross multiply
    121,285,200.90x = 181,927,801.35 × 56,715,119.40
  4. Step 4: Simplify right side
    121,285,200.90x = 10,318,056,975,744,730
  5. Step 5: Solve for x
    x = 10,318,056,975,744,730/121,285,200.90
  6. Step 6: Final answer
    x = 85,072,679.10

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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.