Home / 28,189,637.46-38,900,660.13-15,312,304.98

Finding the Fourth Proportional to 28,189,637.46, 38,900,660.13 and 15,312,304.98

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Solution

The fourth proportional to 28,189,637.46, 38,900,660.13 and 15,312,304.98 is: 21,130,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189,637.46 : 38,900,660.13 = 15,312,304.98 : x
  2. Step 2: Convert to fraction form
    28,189,637.46/38,900,660.13 = 15,312,304.98/x
  3. Step 3: Cross multiply
    28,189,637.46x = 38,900,660.13 × 15,312,304.98
  4. Step 4: Simplify right side
    28,189,637.46x = 595,658,771,833,886.50
  5. Step 5: Solve for x
    x = 595,658,771,833,886.50/28,189,637.46
  6. Step 6: Final answer
    x = 21,130,416.19

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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.