Home / 20,409,011,345.31-28,164,435,422.54-11,021,637,521.31

Finding the Fourth Proportional to 20,409,011,345.31, 28,164,435,422.54 and 11,021,637,521.31

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Solution

The fourth proportional to 20,409,011,345.31, 28,164,435,422.54 and 11,021,637,521.31 is: 15,209,859,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,011,345.31 : 28,164,435,422.54 = 11,021,637,521.31 : x
  2. Step 2: Convert to fraction form
    20,409,011,345.31/28,164,435,422.54 = 11,021,637,521.31/x
  3. Step 3: Cross multiply
    20,409,011,345.31x = 28,164,435,422.54 × 11,021,637,521.31
  4. Step 4: Simplify right side
    20,409,011,345.31x = 310,418,198,219,524,210,688
  5. Step 5: Solve for x
    x = 310,418,198,219,524,210,688/20,409,011,345.31
  6. Step 6: Final answer
    x = 15,209,859,653.04

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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.