Home / 1,385,323,039.78-1,911,722,167.85-750,238,384.75

Finding the Fourth Proportional to 1,385,323,039.78, 1,911,722,167.85 and 750,238,384.75

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Solution

The fourth proportional to 1,385,323,039.78, 1,911,722,167.85 and 750,238,384.75 is: 1,035,316,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,323,039.78 : 1,911,722,167.85 = 750,238,384.75 : x
  2. Step 2: Convert to fraction form
    1,385,323,039.78/1,911,722,167.85 = 750,238,384.75/x
  3. Step 3: Cross multiply
    1,385,323,039.78x = 1,911,722,167.85 × 750,238,384.75
  4. Step 4: Simplify right side
    1,385,323,039.78x = 1,434,247,351,290,021,888
  5. Step 5: Solve for x
    x = 1,434,247,351,290,021,888/1,385,323,039.78
  6. Step 6: Final answer
    x = 1,035,316,175.44

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Double scale
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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.