Home / 28,941,368.90-39,939,557.02-15,889,830.98

Finding the Fourth Proportional to 28,941,368.90, 39,939,557.02 and 15,889,830.98

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Solution

The fourth proportional to 28,941,368.90, 39,939,557.02 and 15,889,830.98 is: 21,928,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941,368.90 : 39,939,557.02 = 15,889,830.98 : x
  2. Step 2: Convert to fraction form
    28,941,368.90/39,939,557.02 = 15,889,830.98/x
  3. Step 3: Cross multiply
    28,941,368.90x = 39,939,557.02 × 15,889,830.98
  4. Step 4: Simplify right side
    28,941,368.90x = 634,632,810,224,450.12
  5. Step 5: Solve for x
    x = 634,632,810,224,450.12/28,941,368.90
  6. Step 6: Final answer
    x = 21,928,223.66

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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.