Home / 28,075,141.49-38,742,981.48-15,685,327.98

Finding the Fourth Proportional to 28,075,141.49, 38,742,981.48 and 15,685,327.98

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Solution

The fourth proportional to 28,075,141.49, 38,742,981.48 and 15,685,327.98 is: 21,645,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075,141.49 : 38,742,981.48 = 15,685,327.98 : x
  2. Step 2: Convert to fraction form
    28,075,141.49/38,742,981.48 = 15,685,327.98/x
  3. Step 3: Cross multiply
    28,075,141.49x = 38,742,981.48 × 15,685,327.98
  4. Step 4: Simplify right side
    28,075,141.49x = 607,696,371,436,865.75
  5. Step 5: Solve for x
    x = 607,696,371,436,865.75/28,075,141.49
  6. Step 6: Final answer
    x = 21,645,353.84

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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.