Home / 30,731,421.60-46,097,132.40-15,425,920.80

Finding the Fourth Proportional to 30,731,421.60, 46,097,132.40 and 15,425,920.80

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Solution

The fourth proportional to 30,731,421.60, 46,097,132.40 and 15,425,920.80 is: 23,138,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731,421.60 : 46,097,132.40 = 15,425,920.80 : x
  2. Step 2: Convert to fraction form
    30,731,421.60/46,097,132.40 = 15,425,920.80/x
  3. Step 3: Cross multiply
    30,731,421.60x = 46,097,132.40 × 15,425,920.80
  4. Step 4: Simplify right side
    30,731,421.60x = 711,090,713,509,513.88
  5. Step 5: Solve for x
    x = 711,090,713,509,513.88/30,731,421.60
  6. Step 6: Final answer
    x = 23,138,881.20

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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.