Home / 472,750,445.60-647,665,089.48-455,071,780

Finding the Fourth Proportional to 472,750,445.60, 647,665,089.48 and 455,071,780

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Solution

The fourth proportional to 472,750,445.60, 647,665,089.48 and 455,071,780 is: 623,445,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,750,445.60 : 647,665,089.48 = 455,071,780 : x
  2. Step 2: Convert to fraction form
    472,750,445.60/647,665,089.48 = 455,071,780/x
  3. Step 3: Cross multiply
    472,750,445.60x = 647,665,089.48 × 455,071,780
  4. Step 4: Simplify right side
    472,750,445.60x = 294,734,105,113,522,880
  5. Step 5: Solve for x
    x = 294,734,105,113,522,880/472,750,445.60
  6. Step 6: Final answer
    x = 623,445,430.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.