Home / 121,562,911.85-167,756,870.16-65,808,330.74

Finding the Fourth Proportional to 121,562,911.85, 167,756,870.16 and 65,808,330.74

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Solution

The fourth proportional to 121,562,911.85, 167,756,870.16 and 65,808,330.74 is: 90,815,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,562,911.85 : 167,756,870.16 = 65,808,330.74 : x
  2. Step 2: Convert to fraction form
    121,562,911.85/167,756,870.16 = 65,808,330.74/x
  3. Step 3: Cross multiply
    121,562,911.85x = 167,756,870.16 × 65,808,330.74
  4. Step 4: Simplify right side
    121,562,911.85x = 11,039,799,594,557,732
  5. Step 5: Solve for x
    x = 11,039,799,594,557,732/121,562,911.85
  6. Step 6: Final answer
    x = 90,815,524.46

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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.