Home / 210,030,151.61-289,834,012.81-115,942,279.14

Finding the Fourth Proportional to 210,030,151.61, 289,834,012.81 and 115,942,279.14

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Solution

The fourth proportional to 210,030,151.61, 289,834,012.81 and 115,942,279.14 is: 159,996,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,030,151.61 : 289,834,012.81 = 115,942,279.14 : x
  2. Step 2: Convert to fraction form
    210,030,151.61/289,834,012.81 = 115,942,279.14/x
  3. Step 3: Cross multiply
    210,030,151.61x = 289,834,012.81 × 115,942,279.14
  4. Step 4: Simplify right side
    210,030,151.61x = 33,604,016,017,483,356
  5. Step 5: Solve for x
    x = 33,604,016,017,483,356/210,030,151.61
  6. Step 6: Final answer
    x = 159,996,151.79

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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.