Home / 121,539,335.88-167,724,263.61-65,784,740.67

Finding the Fourth Proportional to 121,539,335.88, 167,724,263.61 and 65,784,740.67

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Solution

The fourth proportional to 121,539,335.88, 167,724,263.61 and 65,784,740.67 is: 90,782,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,539,335.88 : 167,724,263.61 = 65,784,740.67 : x
  2. Step 2: Convert to fraction form
    121,539,335.88/167,724,263.61 = 65,784,740.67/x
  3. Step 3: Cross multiply
    121,539,335.88x = 167,724,263.61 × 65,784,740.67
  4. Step 4: Simplify right side
    121,539,335.88x = 11,033,697,185,650,570
  5. Step 5: Solve for x
    x = 11,033,697,185,650,570/121,539,335.88
  6. Step 6: Final answer
    x = 90,782,931.35

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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.