Home / 256,519,808.95-353,987,852.65-139,042,616.98

Finding the Fourth Proportional to 256,519,808.95, 353,987,852.65 and 139,042,616.98

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Solution

The fourth proportional to 256,519,808.95, 353,987,852.65 and 139,042,616.98 is: 191,873,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,808.95 : 353,987,852.65 = 139,042,616.98 : x
  2. Step 2: Convert to fraction form
    256,519,808.95/353,987,852.65 = 139,042,616.98/x
  3. Step 3: Cross multiply
    256,519,808.95x = 353,987,852.65 × 139,042,616.98
  4. Step 4: Simplify right side
    256,519,808.95x = 49,219,397,411,586,624
  5. Step 5: Solve for x
    x = 49,219,397,411,586,624/256,519,808.95
  6. Step 6: Final answer
    x = 191,873,670.94

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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.