Home / 13,289,985.40-19,934,978.10-6,571,521.40

Finding the Fourth Proportional to 13,289,985.40, 19,934,978.10 and 6,571,521.40

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Solution

The fourth proportional to 13,289,985.40, 19,934,978.10 and 6,571,521.40 is: 9,857,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,985.40 : 19,934,978.10 = 6,571,521.40 : x
  2. Step 2: Convert to fraction form
    13,289,985.40/19,934,978.10 = 6,571,521.40/x
  3. Step 3: Cross multiply
    13,289,985.40x = 19,934,978.10 × 6,571,521.40
  4. Step 4: Simplify right side
    13,289,985.40x = 131,003,135,192,681.36
  5. Step 5: Solve for x
    x = 131,003,135,192,681.36/13,289,985.40
  6. Step 6: Final answer
    x = 9,857,282.10

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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.