Home / 15,742,998,937.68-21,725,596,643.58-9,399,921,065.52

Finding the Fourth Proportional to 15,742,998,937.68, 21,725,596,643.58 and 9,399,921,065.52

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Solution

The fourth proportional to 15,742,998,937.68, 21,725,596,643.58 and 9,399,921,065.52 is: 12,972,045,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742,998,937.68 : 21,725,596,643.58 = 9,399,921,065.52 : x
  2. Step 2: Convert to fraction form
    15,742,998,937.68/21,725,596,643.58 = 9,399,921,065.52/x
  3. Step 3: Cross multiply
    15,742,998,937.68x = 21,725,596,643.58 × 9,399,921,065.52
  4. Step 4: Simplify right side
    15,742,998,937.68x = 204,218,893,550,978,269,184
  5. Step 5: Solve for x
    x = 204,218,893,550,978,269,184/15,742,998,937.68
  6. Step 6: Final answer
    x = 12,972,045,183.98

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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.