Home / 28,941,397.40-39,939,596.36-15,889,859.48

Finding the Fourth Proportional to 28,941,397.40, 39,939,596.36 and 15,889,859.48

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Solution

The fourth proportional to 28,941,397.40, 39,939,596.36 and 15,889,859.48 is: 21,928,263.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941,397.40 : 39,939,596.36 = 15,889,859.48 : x
  2. Step 2: Convert to fraction form
    28,941,397.40/39,939,596.36 = 15,889,859.48/x
  3. Step 3: Cross multiply
    28,941,397.40x = 39,939,596.36 × 15,889,859.48
  4. Step 4: Simplify right side
    28,941,397.40x = 634,634,573,569,172.12
  5. Step 5: Solve for x
    x = 634,634,573,569,172.12/28,941,397.40
  6. Step 6: Final answer
    x = 21,928,263.00

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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.