Home / 525,312,000.80-787,968,001.20-353,319,322.40

Finding the Fourth Proportional to 525,312,000.80, 787,968,001.20 and 353,319,322.40

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Solution

The fourth proportional to 525,312,000.80, 787,968,001.20 and 353,319,322.40 is: 529,978,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,312,000.80 : 787,968,001.20 = 353,319,322.40 : x
  2. Step 2: Convert to fraction form
    525,312,000.80/787,968,001.20 = 353,319,322.40/x
  3. Step 3: Cross multiply
    525,312,000.80x = 787,968,001.20 × 353,319,322.40
  4. Step 4: Simplify right side
    525,312,000.80x = 278,404,320,256,866,400
  5. Step 5: Solve for x
    x = 278,404,320,256,866,400/525,312,000.80
  6. Step 6: Final answer
    x = 529,978,983.60

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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.