Home / 256,317,637.55-353,720,038.12-138,842,967.74

Finding the Fourth Proportional to 256,317,637.55, 353,720,038.12 and 138,842,967.74

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Solution

The fourth proportional to 256,317,637.55, 353,720,038.12 and 138,842,967.74 is: 191,604,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,637.55 : 353,720,038.12 = 138,842,967.74 : x
  2. Step 2: Convert to fraction form
    256,317,637.55/353,720,038.12 = 138,842,967.74/x
  3. Step 3: Cross multiply
    256,317,637.55x = 353,720,038.12 × 138,842,967.74
  4. Step 4: Simplify right side
    256,317,637.55x = 49,111,539,839,571,032
  5. Step 5: Solve for x
    x = 49,111,539,839,571,032/256,317,637.55
  6. Step 6: Final answer
    x = 191,604,215.42

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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.