Home / 21,281,705.40-31,927,223.70-6,902,326.20

Finding the Fourth Proportional to 21,281,705.40, 31,927,223.70 and 6,902,326.20

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Solution

The fourth proportional to 21,281,705.40, 31,927,223.70 and 6,902,326.20 is: 10,355,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,705.40 : 31,927,223.70 = 6,902,326.20 : x
  2. Step 2: Convert to fraction form
    21,281,705.40/31,927,223.70 = 6,902,326.20/x
  3. Step 3: Cross multiply
    21,281,705.40x = 31,927,223.70 × 6,902,326.20
  4. Step 4: Simplify right side
    21,281,705.40x = 220,372,112,637,770.94
  5. Step 5: Solve for x
    x = 220,372,112,637,770.94/21,281,705.40
  6. Step 6: Final answer
    x = 10,355,002.50

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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.