Home / 65,554,820.84-90,465,670.80-36,186,172.40

Finding the Fourth Proportional to 65,554,820.84, 90,465,670.80 and 36,186,172.40

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Solution

The fourth proportional to 65,554,820.84, 90,465,670.80 and 36,186,172.40 is: 49,936,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,554,820.84 : 90,465,670.80 = 36,186,172.40 : x
  2. Step 2: Convert to fraction form
    65,554,820.84/90,465,670.80 = 36,186,172.40/x
  3. Step 3: Cross multiply
    65,554,820.84x = 90,465,670.80 × 36,186,172.40
  4. Step 4: Simplify right side
    65,554,820.84x = 3,273,606,359,850,445.50
  5. Step 5: Solve for x
    x = 3,273,606,359,850,445.50/65,554,820.84
  6. Step 6: Final answer
    x = 49,936,927.87

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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.