Home / 647,035,013.80-970,552,520.70-371,535,999.40

Finding the Fourth Proportional to 647,035,013.80, 970,552,520.70 and 371,535,999.40

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Solution

The fourth proportional to 647,035,013.80, 970,552,520.70 and 371,535,999.40 is: 557,303,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,035,013.80 : 970,552,520.70 = 371,535,999.40 : x
  2. Step 2: Convert to fraction form
    647,035,013.80/970,552,520.70 = 371,535,999.40/x
  3. Step 3: Cross multiply
    647,035,013.80x = 970,552,520.70 × 371,535,999.40
  4. Step 4: Simplify right side
    647,035,013.80x = 360,595,200,748,463,680
  5. Step 5: Solve for x
    x = 360,595,200,748,463,680/647,035,013.80
  6. Step 6: Final answer
    x = 557,303,999.10

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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.