Home / 243,285,428.20-364,897,708.17-79,509,483.76

Finding the Fourth Proportional to 243,285,428.20, 364,897,708.17 and 79,509,483.76

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Solution

The fourth proportional to 243,285,428.20, 364,897,708.17 and 79,509,483.76 is: 119,254,279.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,285,428.20 : 364,897,708.17 = 79,509,483.76 : x
  2. Step 2: Convert to fraction form
    243,285,428.20/364,897,708.17 = 79,509,483.76/x
  3. Step 3: Cross multiply
    243,285,428.20x = 364,897,708.17 × 79,509,483.76
  4. Step 4: Simplify right side
    243,285,428.20x = 29,012,828,401,803,836
  5. Step 5: Solve for x
    x = 29,012,828,401,803,836/243,285,428.20
  6. Step 6: Final answer
    x = 119,254,279.29

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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.