Home / 644,112,001.80-966,168,002.70-159,437,809.80

Finding the Fourth Proportional to 644,112,001.80, 966,168,002.70 and 159,437,809.80

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Solution

The fourth proportional to 644,112,001.80, 966,168,002.70 and 159,437,809.80 is: 239,156,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,112,001.80 : 966,168,002.70 = 159,437,809.80 : x
  2. Step 2: Convert to fraction form
    644,112,001.80/966,168,002.70 = 159,437,809.80/x
  3. Step 3: Cross multiply
    644,112,001.80x = 966,168,002.70 × 159,437,809.80
  4. Step 4: Simplify right side
    644,112,001.80x = 154,043,710,249,328,512
  5. Step 5: Solve for x
    x = 154,043,710,249,328,512/644,112,001.80
  6. Step 6: Final answer
    x = 239,156,714.70

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Similar ratio
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1.5x scale

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.