Home / 977,509,405.30-1,467,964,719.15-518,344,381.30

Finding the Fourth Proportional to 977,509,405.30, 1,467,964,719.15 and 518,344,381.30

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Solution

The fourth proportional to 977,509,405.30, 1,467,964,719.15 and 518,344,381.30 is: 778,418,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,509,405.30 : 1,467,964,719.15 = 518,344,381.30 : x
  2. Step 2: Convert to fraction form
    977,509,405.30/1,467,964,719.15 = 518,344,381.30/x
  3. Step 3: Cross multiply
    977,509,405.30x = 1,467,964,719.15 × 518,344,381.30
  4. Step 4: Simplify right side
    977,509,405.30x = 760,911,264,118,035,072
  5. Step 5: Solve for x
    x = 760,911,264,118,035,072/977,509,405.30
  6. Step 6: Final answer
    x = 778,418,355.87

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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.