Home / 12,938,830.80-19,374,031.80-10,368,085.20

Finding the Fourth Proportional to 12,938,830.80, 19,374,031.80 and 10,368,085.20

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Solution

The fourth proportional to 12,938,830.80, 19,374,031.80 and 10,368,085.20 is: 15,524,711.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,830.80 : 19,374,031.80 = 10,368,085.20 : x
  2. Step 2: Convert to fraction form
    12,938,830.80/19,374,031.80 = 10,368,085.20/x
  3. Step 3: Cross multiply
    12,938,830.80x = 19,374,031.80 × 10,368,085.20
  4. Step 4: Simplify right side
    12,938,830.80x = 200,871,612,369,909.34
  5. Step 5: Solve for x
    x = 200,871,612,369,909.34/12,938,830.80
  6. Step 6: Final answer
    x = 15,524,711.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.