Home / 977,313,509.72-1,465,970,536.50-287,220,725.72

Finding the Fourth Proportional to 977,313,509.72, 1,465,970,536.50 and 287,220,725.72

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Solution

The fourth proportional to 977,313,509.72, 1,465,970,536.50 and 287,220,725.72 is: 430,831,168.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,313,509.72 : 1,465,970,536.50 = 287,220,725.72 : x
  2. Step 2: Convert to fraction form
    977,313,509.72/1,465,970,536.50 = 287,220,725.72/x
  3. Step 3: Cross multiply
    977,313,509.72x = 1,465,970,536.50 × 287,220,725.72
  4. Step 4: Simplify right side
    977,313,509.72x = 421,057,121,377,667,776
  5. Step 5: Solve for x
    x = 421,057,121,377,667,776/977,313,509.72
  6. Step 6: Final answer
    x = 430,831,168.49

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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.