Home / 30,960,123.25-42,689,868.19-19,781,848.08

Finding the Fourth Proportional to 30,960,123.25, 42,689,868.19 and 19,781,848.08

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Solution

The fourth proportional to 30,960,123.25, 42,689,868.19 and 19,781,848.08 is: 27,276,522.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960,123.25 : 42,689,868.19 = 19,781,848.08 : x
  2. Step 2: Convert to fraction form
    30,960,123.25/42,689,868.19 = 19,781,848.08/x
  3. Step 3: Cross multiply
    30,960,123.25x = 42,689,868.19 × 19,781,848.08
  4. Step 4: Simplify right side
    30,960,123.25x = 844,484,487,089,804.50
  5. Step 5: Solve for x
    x = 844,484,487,089,804.50/30,960,123.25
  6. Step 6: Final answer
    x = 27,276,522.13

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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.