Home / 30,506,730.81-42,100,110.64-17,948,662.05

Finding the Fourth Proportional to 30,506,730.81, 42,100,110.64 and 17,948,662.05

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Solution

The fourth proportional to 30,506,730.81, 42,100,110.64 and 17,948,662.05 is: 24,769,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506,730.81 : 42,100,110.64 = 17,948,662.05 : x
  2. Step 2: Convert to fraction form
    30,506,730.81/42,100,110.64 = 17,948,662.05/x
  3. Step 3: Cross multiply
    30,506,730.81x = 42,100,110.64 × 17,948,662.05
  4. Step 4: Simplify right side
    30,506,730.81x = 755,640,658,205,347.88
  5. Step 5: Solve for x
    x = 755,640,658,205,347.88/30,506,730.81
  6. Step 6: Final answer
    x = 24,769,637.33

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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.