Home / 200,423,206.65-300,561,069.80-69,232,095.70

Finding the Fourth Proportional to 200,423,206.65, 300,561,069.80 and 69,232,095.70

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Solution

The fourth proportional to 200,423,206.65, 300,561,069.80 and 69,232,095.70 is: 103,822,671.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,423,206.65 : 300,561,069.80 = 69,232,095.70 : x
  2. Step 2: Convert to fraction form
    200,423,206.65/300,561,069.80 = 69,232,095.70/x
  3. Step 3: Cross multiply
    200,423,206.65x = 300,561,069.80 × 69,232,095.70
  4. Step 4: Simplify right side
    200,423,206.65x = 20,808,472,748,087,980
  5. Step 5: Solve for x
    x = 20,808,472,748,087,980/200,423,206.65
  6. Step 6: Final answer
    x = 103,822,671.52

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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.