Home / 879,153,095.61-1,213,265,390.51-482,692,795.20

Finding the Fourth Proportional to 879,153,095.61, 1,213,265,390.51 and 482,692,795.20

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Solution

The fourth proportional to 879,153,095.61, 1,213,265,390.51 and 482,692,795.20 is: 666,134,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,153,095.61 : 1,213,265,390.51 = 482,692,795.20 : x
  2. Step 2: Convert to fraction form
    879,153,095.61/1,213,265,390.51 = 482,692,795.20/x
  3. Step 3: Cross multiply
    879,153,095.61x = 1,213,265,390.51 × 482,692,795.20
  4. Step 4: Simplify right side
    879,153,095.61x = 585,634,462,664,691,456
  5. Step 5: Solve for x
    x = 585,634,462,664,691,456/879,153,095.61
  6. Step 6: Final answer
    x = 666,134,789.93

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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.