Home / 306,021,656,037.60-422,445,319,586.28-197,687,587,400.64

Finding the Fourth Proportional to 306,021,656,037.60, 422,445,319,586.28 and 197,687,587,400.64

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Solution

The fourth proportional to 306,021,656,037.60, 422,445,319,586.28 and 197,687,587,400.64 is: 272,896,360,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,021,656,037.60 : 422,445,319,586.28 = 197,687,587,400.64 : x
  2. Step 2: Convert to fraction form
    306,021,656,037.60/422,445,319,586.28 = 197,687,587,400.64/x
  3. Step 3: Cross multiply
    306,021,656,037.60x = 422,445,319,586.28 × 197,687,587,400.64
  4. Step 4: Simplify right side
    306,021,656,037.60x = 83,512,196,037,704,043,986,944
  5. Step 5: Solve for x
    x = 83,512,196,037,704,043,986,944/306,021,656,037.60
  6. Step 6: Final answer
    x = 272,896,360,078.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.