Home / 21,185,657.80-31,778,486.70-16,402,688.80

Finding the Fourth Proportional to 21,185,657.80, 31,778,486.70 and 16,402,688.80

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Solution

The fourth proportional to 21,185,657.80, 31,778,486.70 and 16,402,688.80 is: 24,604,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,657.80 : 31,778,486.70 = 16,402,688.80 : x
  2. Step 2: Convert to fraction form
    21,185,657.80/31,778,486.70 = 16,402,688.80/x
  3. Step 3: Cross multiply
    21,185,657.80x = 31,778,486.70 × 16,402,688.80
  4. Step 4: Simplify right side
    21,185,657.80x = 521,252,627,875,039
  5. Step 5: Solve for x
    x = 521,252,627,875,039/21,185,657.80
  6. Step 6: Final answer
    x = 24,604,033.20

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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.