Home / 352,341,859.20-528,512,788.80-243,502,742.40

Finding the Fourth Proportional to 352,341,859.20, 528,512,788.80 and 243,502,742.40

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Solution

The fourth proportional to 352,341,859.20, 528,512,788.80 and 243,502,742.40 is: 365,254,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,341,859.20 : 528,512,788.80 = 243,502,742.40 : x
  2. Step 2: Convert to fraction form
    352,341,859.20/528,512,788.80 = 243,502,742.40/x
  3. Step 3: Cross multiply
    352,341,859.20x = 528,512,788.80 × 243,502,742.40
  4. Step 4: Simplify right side
    352,341,859.20x = 128,694,313,466,272,016
  5. Step 5: Solve for x
    x = 128,694,313,466,272,016/352,341,859.20
  6. Step 6: Final answer
    x = 365,254,113.60

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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.