Home / 21,069,698.80-31,607,079.36-7,420,024

Finding the Fourth Proportional to 21,069,698.80, 31,607,079.36 and 7,420,024

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Solution

The fourth proportional to 21,069,698.80, 31,607,079.36 and 7,420,024 is: 11,130,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,698.80 : 31,607,079.36 = 7,420,024 : x
  2. Step 2: Convert to fraction form
    21,069,698.80/31,607,079.36 = 7,420,024/x
  3. Step 3: Cross multiply
    21,069,698.80x = 31,607,079.36 × 7,420,024
  4. Step 4: Simplify right side
    21,069,698.80x = 234,525,287,421,104.62
  5. Step 5: Solve for x
    x = 234,525,287,421,104.62/21,069,698.80
  6. Step 6: Final answer
    x = 11,130,927.39

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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.