Home / 153,286,281.20-229,929,421.80-145,728,009.20

Finding the Fourth Proportional to 153,286,281.20, 229,929,421.80 and 145,728,009.20

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Solution

The fourth proportional to 153,286,281.20, 229,929,421.80 and 145,728,009.20 is: 218,592,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,286,281.20 : 229,929,421.80 = 145,728,009.20 : x
  2. Step 2: Convert to fraction form
    153,286,281.20/229,929,421.80 = 145,728,009.20/x
  3. Step 3: Cross multiply
    153,286,281.20x = 229,929,421.80 × 145,728,009.20
  4. Step 4: Simplify right side
    153,286,281.20x = 33,507,156,895,421,080
  5. Step 5: Solve for x
    x = 33,507,156,895,421,080/153,286,281.20
  6. Step 6: Final answer
    x = 218,592,013.80

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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.