Home / 639,318,441.51-881,773,300.73-550,160,660.88

Finding the Fourth Proportional to 639,318,441.51, 881,773,300.73 and 550,160,660.88

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Solution

The fourth proportional to 639,318,441.51, 881,773,300.73 and 550,160,660.88 is: 758,803,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,318,441.51 : 881,773,300.73 = 550,160,660.88 : x
  2. Step 2: Convert to fraction form
    639,318,441.51/881,773,300.73 = 550,160,660.88/x
  3. Step 3: Cross multiply
    639,318,441.51x = 881,773,300.73 × 550,160,660.88
  4. Step 4: Simplify right side
    639,318,441.51x = 485,116,981,877,331,136
  5. Step 5: Solve for x
    x = 485,116,981,877,331,136/639,318,441.51
  6. Step 6: Final answer
    x = 758,803,360.55

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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.