Home / 28,355,329.70-42,532,994.55-13,210,792.10

Finding the Fourth Proportional to 28,355,329.70, 42,532,994.55 and 13,210,792.10

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Solution

The fourth proportional to 28,355,329.70, 42,532,994.55 and 13,210,792.10 is: 19,816,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,329.70 : 42,532,994.55 = 13,210,792.10 : x
  2. Step 2: Convert to fraction form
    28,355,329.70/42,532,994.55 = 13,210,792.10/x
  3. Step 3: Cross multiply
    28,355,329.70x = 42,532,994.55 × 13,210,792.10
  4. Step 4: Simplify right side
    28,355,329.70x = 561,894,548,390,483
  5. Step 5: Solve for x
    x = 561,894,548,390,483/28,355,329.70
  6. Step 6: Final answer
    x = 19,816,188.15

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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.