Home / 212,740,697.76-319,254,645.04-83,332,262.72

Finding the Fourth Proportional to 212,740,697.76, 319,254,645.04 and 83,332,262.72

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Solution

The fourth proportional to 212,740,697.76, 319,254,645.04 and 83,332,262.72 is: 125,054,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,740,697.76 : 319,254,645.04 = 83,332,262.72 : x
  2. Step 2: Convert to fraction form
    212,740,697.76/319,254,645.04 = 83,332,262.72/x
  3. Step 3: Cross multiply
    212,740,697.76x = 319,254,645.04 × 83,332,262.72
  4. Step 4: Simplify right side
    212,740,697.76x = 26,604,211,955,053,628
  5. Step 5: Solve for x
    x = 26,604,211,955,053,628/212,740,697.76
  6. Step 6: Final answer
    x = 125,054,642.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.