Home / 30,902,903.40-46,370,943.90-12,953,821.80

Finding the Fourth Proportional to 30,902,903.40, 46,370,943.90 and 12,953,821.80

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Solution

The fourth proportional to 30,902,903.40, 46,370,943.90 and 12,953,821.80 is: 19,437,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902,903.40 : 46,370,943.90 = 12,953,821.80 : x
  2. Step 2: Convert to fraction form
    30,902,903.40/46,370,943.90 = 12,953,821.80/x
  3. Step 3: Cross multiply
    30,902,903.40x = 46,370,943.90 × 12,953,821.80
  4. Step 4: Simplify right side
    30,902,903.40x = 600,680,943,978,397
  5. Step 5: Solve for x
    x = 600,680,943,978,397/30,902,903.40
  6. Step 6: Final answer
    x = 19,437,686.36

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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.