Home / 21,063,459.40-31,596,938.70-6,686,121.40

Finding the Fourth Proportional to 21,063,459.40, 31,596,938.70 and 6,686,121.40

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Solution

The fourth proportional to 21,063,459.40, 31,596,938.70 and 6,686,121.40 is: 10,029,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,459.40 : 31,596,938.70 = 6,686,121.40 : x
  2. Step 2: Convert to fraction form
    21,063,459.40/31,596,938.70 = 6,686,121.40/x
  3. Step 3: Cross multiply
    21,063,459.40x = 31,596,938.70 × 6,686,121.40
  4. Step 4: Simplify right side
    21,063,459.40x = 211,260,968,016,558.19
  5. Step 5: Solve for x
    x = 211,260,968,016,558.19/21,063,459.40
  6. Step 6: Final answer
    x = 10,029,737.47

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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.