Home / 256,023,561.12-353,312,502.32-138,548,878

Finding the Fourth Proportional to 256,023,561.12, 353,312,502.32 and 138,548,878

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Solution

The fourth proportional to 256,023,561.12, 353,312,502.32 and 138,548,878 is: 191,197,445.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,023,561.12 : 353,312,502.32 = 138,548,878 : x
  2. Step 2: Convert to fraction form
    256,023,561.12/353,312,502.32 = 138,548,878/x
  3. Step 3: Cross multiply
    256,023,561.12x = 353,312,502.32 × 138,548,878
  4. Step 4: Simplify right side
    256,023,561.12x = 48,951,050,779,808,392
  5. Step 5: Solve for x
    x = 48,951,050,779,808,392/256,023,561.12
  6. Step 6: Final answer
    x = 191,197,445.13

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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.