Home / 877,711,637.72-1,316,427,309.75-255,781,393.38

Finding the Fourth Proportional to 877,711,637.72, 1,316,427,309.75 and 255,781,393.38

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Solution

The fourth proportional to 877,711,637.72, 1,316,427,309.75 and 255,781,393.38 is: 383,631,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,711,637.72 : 1,316,427,309.75 = 255,781,393.38 : x
  2. Step 2: Convert to fraction form
    877,711,637.72/1,316,427,309.75 = 255,781,393.38/x
  3. Step 3: Cross multiply
    877,711,637.72x = 1,316,427,309.75 × 255,781,393.38
  4. Step 4: Simplify right side
    877,711,637.72x = 336,717,611,569,669,888
  5. Step 5: Solve for x
    x = 336,717,611,569,669,888/877,711,637.72
  6. Step 6: Final answer
    x = 383,631,248.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.