Home / 20,624,396.40-30,921,878.52-9,688,482.72

Finding the Fourth Proportional to 20,624,396.40, 30,921,878.52 and 9,688,482.72

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Solution

The fourth proportional to 20,624,396.40, 30,921,878.52 and 9,688,482.72 is: 14,525,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624,396.40 : 30,921,878.52 = 9,688,482.72 : x
  2. Step 2: Convert to fraction form
    20,624,396.40/30,921,878.52 = 9,688,482.72/x
  3. Step 3: Cross multiply
    20,624,396.40x = 30,921,878.52 × 9,688,482.72
  4. Step 4: Simplify right side
    20,624,396.40x = 299,586,085,710,959.19
  5. Step 5: Solve for x
    x = 299,586,085,710,959.19/20,624,396.40
  6. Step 6: Final answer
    x = 14,525,811.08

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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.