Home / 31,030,907.80-42,822,652.60-17,985,733.51

Finding the Fourth Proportional to 31,030,907.80, 42,822,652.60 and 17,985,733.51

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Solution

The fourth proportional to 31,030,907.80, 42,822,652.60 and 17,985,733.51 is: 24,820,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030,907.80 : 42,822,652.60 = 17,985,733.51 : x
  2. Step 2: Convert to fraction form
    31,030,907.80/42,822,652.60 = 17,985,733.51/x
  3. Step 3: Cross multiply
    31,030,907.80x = 42,822,652.60 × 17,985,733.51
  4. Step 4: Simplify right side
    31,030,907.80x = 770,196,817,854,908.75
  5. Step 5: Solve for x
    x = 770,196,817,854,908.75/31,030,907.80
  6. Step 6: Final answer
    x = 24,820,312.15

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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.