Home / 28,440,913.49-39,248,459.98-15,388,172.40

Finding the Fourth Proportional to 28,440,913.49, 39,248,459.98 and 15,388,172.40

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Solution

The fourth proportional to 28,440,913.49, 39,248,459.98 and 15,388,172.40 is: 21,235,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440,913.49 : 39,248,459.98 = 15,388,172.40 : x
  2. Step 2: Convert to fraction form
    28,440,913.49/39,248,459.98 = 15,388,172.40/x
  3. Step 3: Cross multiply
    28,440,913.49x = 39,248,459.98 × 15,388,172.40
  4. Step 4: Simplify right side
    28,440,913.49x = 603,962,068,606,740.50
  5. Step 5: Solve for x
    x = 603,962,068,606,740.50/28,440,913.49
  6. Step 6: Final answer
    x = 21,235,677.57

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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.