Home / 122,477,422.72-169,018,547.42-66,723,301.28

Finding the Fourth Proportional to 122,477,422.72, 169,018,547.42 and 66,723,301.28

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Solution

The fourth proportional to 122,477,422.72, 169,018,547.42 and 66,723,301.28 is: 92,077,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477,422.72 : 169,018,547.42 = 66,723,301.28 : x
  2. Step 2: Convert to fraction form
    122,477,422.72/169,018,547.42 = 66,723,301.28/x
  3. Step 3: Cross multiply
    122,477,422.72x = 169,018,547.42 × 66,723,301.28
  4. Step 4: Simplify right side
    122,477,422.72x = 11,277,475,461,412,626
  5. Step 5: Solve for x
    x = 11,277,475,461,412,626/122,477,422.72
  6. Step 6: Final answer
    x = 92,077,994.55

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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.