Home / 386,606,002.81-533,628,706.83-252,664,068.40

Finding the Fourth Proportional to 386,606,002.81, 533,628,706.83 and 252,664,068.40

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Solution

The fourth proportional to 386,606,002.81, 533,628,706.83 and 252,664,068.40 is: 348,749,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,606,002.81 : 533,628,706.83 = 252,664,068.40 : x
  2. Step 2: Convert to fraction form
    386,606,002.81/533,628,706.83 = 252,664,068.40/x
  3. Step 3: Cross multiply
    386,606,002.81x = 533,628,706.83 × 252,664,068.40
  4. Step 4: Simplify right side
    386,606,002.81x = 134,828,800,082,698,672
  5. Step 5: Solve for x
    x = 134,828,800,082,698,672/386,606,002.81
  6. Step 6: Final answer
    x = 348,749,887.75

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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.