Home / 109,450,255.12-151,036,841.21-65,421,528.74

Finding the Fourth Proportional to 109,450,255.12, 151,036,841.21 and 65,421,528.74

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Solution

The fourth proportional to 109,450,255.12, 151,036,841.21 and 65,421,528.74 is: 90,279,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,450,255.12 : 151,036,841.21 = 65,421,528.74 : x
  2. Step 2: Convert to fraction form
    109,450,255.12/151,036,841.21 = 65,421,528.74/x
  3. Step 3: Cross multiply
    109,450,255.12x = 151,036,841.21 × 65,421,528.74
  4. Step 4: Simplify right side
    109,450,255.12x = 9,881,061,048,720,178
  5. Step 5: Solve for x
    x = 9,881,061,048,720,178/109,450,255.12
  6. Step 6: Final answer
    x = 90,279,013.40

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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.