Home / 780,132,572.40-1,076,584,388.78-422,899,244.40

Finding the Fourth Proportional to 780,132,572.40, 1,076,584,388.78 and 422,899,244.40

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Solution

The fourth proportional to 780,132,572.40, 1,076,584,388.78 and 422,899,244.40 is: 583,601,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,132,572.40 : 1,076,584,388.78 = 422,899,244.40 : x
  2. Step 2: Convert to fraction form
    780,132,572.40/1,076,584,388.78 = 422,899,244.40/x
  3. Step 3: Cross multiply
    780,132,572.40x = 1,076,584,388.78 × 422,899,244.40
  4. Step 4: Simplify right side
    780,132,572.40x = 455,286,724,547,897,792
  5. Step 5: Solve for x
    x = 455,286,724,547,897,792/780,132,572.40
  6. Step 6: Final answer
    x = 583,601,737.26

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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.