Home / 3,120,828,139.80-4,681,242,209.70-2,835,125,458.20

Finding the Fourth Proportional to 3,120,828,139.80, 4,681,242,209.70 and 2,835,125,458.20

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Solution

The fourth proportional to 3,120,828,139.80, 4,681,242,209.70 and 2,835,125,458.20 is: 4,252,688,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,828,139.80 : 4,681,242,209.70 = 2,835,125,458.20 : x
  2. Step 2: Convert to fraction form
    3,120,828,139.80/4,681,242,209.70 = 2,835,125,458.20/x
  3. Step 3: Cross multiply
    3,120,828,139.80x = 4,681,242,209.70 × 2,835,125,458.20
  4. Step 4: Simplify right side
    3,120,828,139.80x = 13,271,908,964,720,891,904
  5. Step 5: Solve for x
    x = 13,271,908,964,720,891,904/3,120,828,139.80
  6. Step 6: Final answer
    x = 4,252,688,187.30

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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.