Home / 212,931,005.58-319,422,006.36-65,359,235.68

Finding the Fourth Proportional to 212,931,005.58, 319,422,006.36 and 65,359,235.68

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Solution

The fourth proportional to 212,931,005.58, 319,422,006.36 and 65,359,235.68 is: 98,046,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,931,005.58 : 319,422,006.36 = 65,359,235.68 : x
  2. Step 2: Convert to fraction form
    212,931,005.58/319,422,006.36 = 65,359,235.68/x
  3. Step 3: Cross multiply
    212,931,005.58x = 319,422,006.36 × 65,359,235.68
  4. Step 4: Simplify right side
    212,931,005.58x = 20,877,178,195,061,700
  5. Step 5: Solve for x
    x = 20,877,178,195,061,700/212,931,005.58
  6. Step 6: Final answer
    x = 98,046,680.14

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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.