Home / 1,379,780,963.79-1,904,088,043.67-753,249,391.71

Finding the Fourth Proportional to 1,379,780,963.79, 1,904,088,043.67 and 753,249,391.71

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Solution

The fourth proportional to 1,379,780,963.79, 1,904,088,043.67 and 753,249,391.71 is: 1,039,478,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,780,963.79 : 1,904,088,043.67 = 753,249,391.71 : x
  2. Step 2: Convert to fraction form
    1,379,780,963.79/1,904,088,043.67 = 753,249,391.71/x
  3. Step 3: Cross multiply
    1,379,780,963.79x = 1,904,088,043.67 × 753,249,391.71
  4. Step 4: Simplify right side
    1,379,780,963.79x = 1,434,253,160,652,945,152
  5. Step 5: Solve for x
    x = 1,434,253,160,652,945,152/1,379,780,963.79
  6. Step 6: Final answer
    x = 1,039,478,872.58

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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.