Home / 10,502,354.40-15,722,038.80-9,879,496.80

Finding the Fourth Proportional to 10,502,354.40, 15,722,038.80 and 9,879,496.80

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Solution

The fourth proportional to 10,502,354.40, 15,722,038.80 and 9,879,496.80 is: 14,789,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,354.40 : 15,722,038.80 = 9,879,496.80 : x
  2. Step 2: Convert to fraction form
    10,502,354.40/15,722,038.80 = 9,879,496.80/x
  3. Step 3: Cross multiply
    10,502,354.40x = 15,722,038.80 × 9,879,496.80
  4. Step 4: Simplify right side
    10,502,354.40x = 155,325,832,014,075.84
  5. Step 5: Solve for x
    x = 155,325,832,014,075.84/10,502,354.40
  6. Step 6: Final answer
    x = 14,789,620.13

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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.