Home / 232,598,417.65-320,987,939.21-128,180,235.49

Finding the Fourth Proportional to 232,598,417.65, 320,987,939.21 and 128,180,235.49

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Solution

The fourth proportional to 232,598,417.65, 320,987,939.21 and 128,180,235.49 is: 176,889,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,598,417.65 : 320,987,939.21 = 128,180,235.49 : x
  2. Step 2: Convert to fraction form
    232,598,417.65/320,987,939.21 = 128,180,235.49/x
  3. Step 3: Cross multiply
    232,598,417.65x = 320,987,939.21 × 128,180,235.49
  4. Step 4: Simplify right side
    232,598,417.65x = 41,144,309,636,746,696
  5. Step 5: Solve for x
    x = 41,144,309,636,746,696/232,598,417.65
  6. Step 6: Final answer
    x = 176,889,894.83

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1.5x scale

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.