Home / 65,680,884,832.35-90,646,376,740.50-39,961,990,616.88

Finding the Fourth Proportional to 65,680,884,832.35, 90,646,376,740.50 and 39,961,990,616.88

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Solution

The fourth proportional to 65,680,884,832.35, 90,646,376,740.50 and 39,961,990,616.88 is: 55,151,657,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680,884,832.35 : 90,646,376,740.50 = 39,961,990,616.88 : x
  2. Step 2: Convert to fraction form
    65,680,884,832.35/90,646,376,740.50 = 39,961,990,616.88/x
  3. Step 3: Cross multiply
    65,680,884,832.35x = 90,646,376,740.50 × 39,961,990,616.88
  4. Step 4: Simplify right side
    65,680,884,832.35x = 3,622,409,656,758,030,041,088
  5. Step 5: Solve for x
    x = 3,622,409,656,758,030,041,088/65,680,884,832.35
  6. Step 6: Final answer
    x = 55,151,657,381.05

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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.