Home / 211,363,411.30-317,045,116.95-142,488,657.70

Finding the Fourth Proportional to 211,363,411.30, 317,045,116.95 and 142,488,657.70

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Solution

The fourth proportional to 211,363,411.30, 317,045,116.95 and 142,488,657.70 is: 213,732,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,363,411.30 : 317,045,116.95 = 142,488,657.70 : x
  2. Step 2: Convert to fraction form
    211,363,411.30/317,045,116.95 = 142,488,657.70/x
  3. Step 3: Cross multiply
    211,363,411.30x = 317,045,116.95 × 142,488,657.70
  4. Step 4: Simplify right side
    211,363,411.30x = 45,175,333,144,545,016
  5. Step 5: Solve for x
    x = 45,175,333,144,545,016/211,363,411.30
  6. Step 6: Final answer
    x = 213,732,986.55

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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.