Home / 553,666,853.20-830,500,279.80-144,723,003.70

Finding the Fourth Proportional to 553,666,853.20, 830,500,279.80 and 144,723,003.70

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Solution

The fourth proportional to 553,666,853.20, 830,500,279.80 and 144,723,003.70 is: 217,084,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,666,853.20 : 830,500,279.80 = 144,723,003.70 : x
  2. Step 2: Convert to fraction form
    553,666,853.20/830,500,279.80 = 144,723,003.70/x
  3. Step 3: Cross multiply
    553,666,853.20x = 830,500,279.80 × 144,723,003.70
  4. Step 4: Simplify right side
    553,666,853.20x = 120,192,495,066,346,416
  5. Step 5: Solve for x
    x = 120,192,495,066,346,416/553,666,853.20
  6. Step 6: Final answer
    x = 217,084,505.55

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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.