Home / 15,742,998,960.68-21,725,596,675.32-9,399,921,088.52

Finding the Fourth Proportional to 15,742,998,960.68, 21,725,596,675.32 and 9,399,921,088.52

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Solution

The fourth proportional to 15,742,998,960.68, 21,725,596,675.32 and 9,399,921,088.52 is: 12,972,045,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742,998,960.68 : 21,725,596,675.32 = 9,399,921,088.52 : x
  2. Step 2: Convert to fraction form
    15,742,998,960.68/21,725,596,675.32 = 9,399,921,088.52/x
  3. Step 3: Cross multiply
    15,742,998,960.68x = 21,725,596,675.32 × 9,399,921,088.52
  4. Step 4: Simplify right side
    15,742,998,960.68x = 204,218,894,349,020,463,104
  5. Step 5: Solve for x
    x = 204,218,894,349,020,463,104/15,742,998,960.68
  6. Step 6: Final answer
    x = 12,972,045,215.72

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1.5x scale

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.