Home / 390,259,458.74-585,423,596.93-110,142,868.43

Finding the Fourth Proportional to 390,259,458.74, 585,423,596.93 and 110,142,868.43

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Solution

The fourth proportional to 390,259,458.74, 585,423,596.93 and 110,142,868.43 is: 165,224,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,259,458.74 : 585,423,596.93 = 110,142,868.43 : x
  2. Step 2: Convert to fraction form
    390,259,458.74/585,423,596.93 = 110,142,868.43/x
  3. Step 3: Cross multiply
    390,259,458.74x = 585,423,596.93 × 110,142,868.43
  4. Step 4: Simplify right side
    390,259,458.74x = 64,480,234,211,927,624
  5. Step 5: Solve for x
    x = 64,480,234,211,927,624/390,259,458.74
  6. Step 6: Final answer
    x = 165,224,013.84

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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.