Home / 20,888,931.70-31,333,397.55-14,511,639.70

Finding the Fourth Proportional to 20,888,931.70, 31,333,397.55 and 14,511,639.70

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Solution

The fourth proportional to 20,888,931.70, 31,333,397.55 and 14,511,639.70 is: 21,767,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888,931.70 : 31,333,397.55 = 14,511,639.70 : x
  2. Step 2: Convert to fraction form
    20,888,931.70/31,333,397.55 = 14,511,639.70/x
  3. Step 3: Cross multiply
    20,888,931.70x = 31,333,397.55 × 14,511,639.70
  4. Step 4: Simplify right side
    20,888,931.70x = 454,698,975,822,462.75
  5. Step 5: Solve for x
    x = 454,698,975,822,462.75/20,888,931.70
  6. Step 6: Final answer
    x = 21,767,459.55

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1.5x scale

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.