Home / 879,585,905.89-1,213,852,254.12-517,505,143.30

Finding the Fourth Proportional to 879,585,905.89, 1,213,852,254.12 and 517,505,143.30

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Solution

The fourth proportional to 879,585,905.89, 1,213,852,254.12 and 517,505,143.30 is: 714,171,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,585,905.89 : 1,213,852,254.12 = 517,505,143.30 : x
  2. Step 2: Convert to fraction form
    879,585,905.89/1,213,852,254.12 = 517,505,143.30/x
  3. Step 3: Cross multiply
    879,585,905.89x = 1,213,852,254.12 × 517,505,143.30
  4. Step 4: Simplify right side
    879,585,905.89x = 628,174,784,710,363,904
  5. Step 5: Solve for x
    x = 628,174,784,710,363,904/879,585,905.89
  6. Step 6: Final answer
    x = 714,171,044.01

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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.