Home / 201,997,423.76-278,756,564.13-112,689,368.24

Finding the Fourth Proportional to 201,997,423.76, 278,756,564.13 and 112,689,368.24

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Solution

The fourth proportional to 201,997,423.76, 278,756,564.13 and 112,689,368.24 is: 155,511,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,997,423.76 : 278,756,564.13 = 112,689,368.24 : x
  2. Step 2: Convert to fraction form
    201,997,423.76/278,756,564.13 = 112,689,368.24/x
  3. Step 3: Cross multiply
    201,997,423.76x = 278,756,564.13 × 112,689,368.24
  4. Step 4: Simplify right side
    201,997,423.76x = 31,412,901,103,168,960
  5. Step 5: Solve for x
    x = 31,412,901,103,168,960/201,997,423.76
  6. Step 6: Final answer
    x = 155,511,394.75

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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.