Home / 879,772,477.20-1,321,068,763.80-699,518,576.40

Finding the Fourth Proportional to 879,772,477.20, 1,321,068,763.80 and 699,518,576.40

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Solution

The fourth proportional to 879,772,477.20, 1,321,068,763.80 and 699,518,576.40 is: 1,050,399,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,772,477.20 : 1,321,068,763.80 = 699,518,576.40 : x
  2. Step 2: Convert to fraction form
    879,772,477.20/1,321,068,763.80 = 699,518,576.40/x
  3. Step 3: Cross multiply
    879,772,477.20x = 1,321,068,763.80 × 699,518,576.40
  4. Step 4: Simplify right side
    879,772,477.20x = 924,112,140,979,883,776
  5. Step 5: Solve for x
    x = 924,112,140,979,883,776/879,772,477.20
  6. Step 6: Final answer
    x = 1,050,399,012.16

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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.