Home / 646,820,873.60-970,231,310.40-355,575,459.20

Finding the Fourth Proportional to 646,820,873.60, 970,231,310.40 and 355,575,459.20

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Solution

The fourth proportional to 646,820,873.60, 970,231,310.40 and 355,575,459.20 is: 533,363,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,820,873.60 : 970,231,310.40 = 355,575,459.20 : x
  2. Step 2: Convert to fraction form
    646,820,873.60/970,231,310.40 = 355,575,459.20/x
  3. Step 3: Cross multiply
    646,820,873.60x = 970,231,310.40 × 355,575,459.20
  4. Step 4: Simplify right side
    646,820,873.60x = 344,990,443,725,697,728
  5. Step 5: Solve for x
    x = 344,990,443,725,697,728/646,820,873.60
  6. Step 6: Final answer
    x = 533,363,188.80

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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.