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Finding the Fourth Proportional to 65,739,405.95, 90,717,060.74 and 35,969,409.74

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Solution

The fourth proportional to 65,739,405.95, 90,717,060.74 and 35,969,409.74 is: 49,635,969.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739,405.95 : 90,717,060.74 = 35,969,409.74 : x
  2. Step 2: Convert to fraction form
    65,739,405.95/90,717,060.74 = 35,969,409.74/x
  3. Step 3: Cross multiply
    65,739,405.95x = 90,717,060.74 × 35,969,409.74
  4. Step 4: Simplify right side
    65,739,405.95x = 3,263,039,127,532,095
  5. Step 5: Solve for x
    x = 3,263,039,127,532,095/65,739,405.95
  6. Step 6: Final answer
    x = 49,635,969.18

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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.