Home / 122,477,420.16-169,018,543.90-66,723,298.72

Finding the Fourth Proportional to 122,477,420.16, 169,018,543.90 and 66,723,298.72

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Solution

The fourth proportional to 122,477,420.16, 169,018,543.90 and 66,723,298.72 is: 92,077,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477,420.16 : 169,018,543.90 = 66,723,298.72 : x
  2. Step 2: Convert to fraction form
    122,477,420.16/169,018,543.90 = 66,723,298.72/x
  3. Step 3: Cross multiply
    122,477,420.16x = 169,018,543.90 × 66,723,298.72
  4. Step 4: Simplify right side
    122,477,420.16x = 11,277,474,793,859,134
  5. Step 5: Solve for x
    x = 11,277,474,793,859,134/122,477,420.16
  6. Step 6: Final answer
    x = 92,077,991.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.