Home / 121,285,206.40-181,927,809.60-56,715,124.90

Finding the Fourth Proportional to 121,285,206.40, 181,927,809.60 and 56,715,124.90

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Solution

The fourth proportional to 121,285,206.40, 181,927,809.60 and 56,715,124.90 is: 85,072,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285,206.40 : 181,927,809.60 = 56,715,124.90 : x
  2. Step 2: Convert to fraction form
    121,285,206.40/181,927,809.60 = 56,715,124.90/x
  3. Step 3: Cross multiply
    121,285,206.40x = 181,927,809.60 × 56,715,124.90
  4. Step 4: Simplify right side
    121,285,206.40x = 10,318,058,444,247,418
  5. Step 5: Solve for x
    x = 10,318,058,444,247,418/121,285,206.40
  6. Step 6: Final answer
    x = 85,072,687.35

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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.