Home / 290,839,688.10-433,698,063.63-288,216,528.54

Finding the Fourth Proportional to 290,839,688.10, 433,698,063.63 and 288,216,528.54

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Solution

The fourth proportional to 290,839,688.10, 433,698,063.63 and 288,216,528.54 is: 429,786,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,839,688.10 : 433,698,063.63 = 288,216,528.54 : x
  2. Step 2: Convert to fraction form
    290,839,688.10/433,698,063.63 = 288,216,528.54/x
  3. Step 3: Cross multiply
    290,839,688.10x = 433,698,063.63 × 288,216,528.54
  4. Step 4: Simplify right side
    290,839,688.10x = 124,998,950,333,958,640
  5. Step 5: Solve for x
    x = 124,998,950,333,958,640/290,839,688.10
  6. Step 6: Final answer
    x = 429,786,426.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.