Home / 168,218,085.42-232,246,041.48-128,984,486.40

Finding the Fourth Proportional to 168,218,085.42, 232,246,041.48 and 128,984,486.40

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Solution

The fourth proportional to 168,218,085.42, 232,246,041.48 and 128,984,486.40 is: 178,079,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,218,085.42 : 232,246,041.48 = 128,984,486.40 : x
  2. Step 2: Convert to fraction form
    168,218,085.42/232,246,041.48 = 128,984,486.40/x
  3. Step 3: Cross multiply
    168,218,085.42x = 232,246,041.48 × 128,984,486.40
  4. Step 4: Simplify right side
    168,218,085.42x = 29,956,136,378,730,896
  5. Step 5: Solve for x
    x = 29,956,136,378,730,896/168,218,085.42
  6. Step 6: Final answer
    x = 178,079,166.12

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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.