Home / 2,889,359,756.12-3,987,336,870.80-1,569,260,312.12

Finding the Fourth Proportional to 2,889,359,756.12, 3,987,336,870.80 and 1,569,260,312.12

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Solution

The fourth proportional to 2,889,359,756.12, 3,987,336,870.80 and 1,569,260,312.12 is: 2,165,590,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889,359,756.12 : 3,987,336,870.80 = 1,569,260,312.12 : x
  2. Step 2: Convert to fraction form
    2,889,359,756.12/3,987,336,870.80 = 1,569,260,312.12/x
  3. Step 3: Cross multiply
    2,889,359,756.12x = 3,987,336,870.80 × 1,569,260,312.12
  4. Step 4: Simplify right side
    2,889,359,756.12x = 6,257,169,502,399,192,064
  5. Step 5: Solve for x
    x = 6,257,169,502,399,192,064/2,889,359,756.12
  6. Step 6: Final answer
    x = 2,165,590,314.31

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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.