Home / 12,998,985.16-17,957,285.07-10,382,053.40

Finding the Fourth Proportional to 12,998,985.16, 17,957,285.07 and 10,382,053.40

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Solution

The fourth proportional to 12,998,985.16, 17,957,285.07 and 10,382,053.40 is: 14,342,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,985.16 : 17,957,285.07 = 10,382,053.40 : x
  2. Step 2: Convert to fraction form
    12,998,985.16/17,957,285.07 = 10,382,053.40/x
  3. Step 3: Cross multiply
    12,998,985.16x = 17,957,285.07 × 10,382,053.40
  4. Step 4: Simplify right side
    12,998,985.16x = 186,433,492,515,762.75
  5. Step 5: Solve for x
    x = 186,433,492,515,762.75/12,998,985.16
  6. Step 6: Final answer
    x = 14,342,157.50

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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.