Home / 478,530,585.60-717,795,878.40-155,447,116.80

Finding the Fourth Proportional to 478,530,585.60, 717,795,878.40 and 155,447,116.80

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Solution

The fourth proportional to 478,530,585.60, 717,795,878.40 and 155,447,116.80 is: 233,170,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,530,585.60 : 717,795,878.40 = 155,447,116.80 : x
  2. Step 2: Convert to fraction form
    478,530,585.60/717,795,878.40 = 155,447,116.80/x
  3. Step 3: Cross multiply
    478,530,585.60x = 717,795,878.40 × 155,447,116.80
  4. Step 4: Simplify right side
    478,530,585.60x = 111,579,299,748,203,408
  5. Step 5: Solve for x
    x = 111,579,299,748,203,408/478,530,585.60
  6. Step 6: Final answer
    x = 233,170,675.20

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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.