Home / 121,407,800.64-167,436,881.15-86,055,681.12

Finding the Fourth Proportional to 121,407,800.64, 167,436,881.15 and 86,055,681.12

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Solution

The fourth proportional to 121,407,800.64, 167,436,881.15 and 86,055,681.12 is: 118,681,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,407,800.64 : 167,436,881.15 = 86,055,681.12 : x
  2. Step 2: Convert to fraction form
    121,407,800.64/167,436,881.15 = 86,055,681.12/x
  3. Step 3: Cross multiply
    121,407,800.64x = 167,436,881.15 × 86,055,681.12
  4. Step 4: Simplify right side
    121,407,800.64x = 14,408,894,851,971,740
  5. Step 5: Solve for x
    x = 14,408,894,851,971,740/121,407,800.64
  6. Step 6: Final answer
    x = 118,681,787.96

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