Home / 256,013,832.94-353,300,019.47-138,539,150.35

Finding the Fourth Proportional to 256,013,832.94, 353,300,019.47 and 138,539,150.35

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Solution

The fourth proportional to 256,013,832.94, 353,300,019.47 and 138,539,150.35 is: 191,184,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,013,832.94 : 353,300,019.47 = 138,539,150.35 : x
  2. Step 2: Convert to fraction form
    256,013,832.94/353,300,019.47 = 138,539,150.35/x
  3. Step 3: Cross multiply
    256,013,832.94x = 353,300,019.47 × 138,539,150.35
  4. Step 4: Simplify right side
    256,013,832.94x = 48,945,884,514,957,216
  5. Step 5: Solve for x
    x = 48,945,884,514,957,216/256,013,832.94
  6. Step 6: Final answer
    x = 191,184,530.75

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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.