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Finding the Fourth Proportional to 608,698,868.34, 840,006,051.68 and 330,240,391.88

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Solution

The fourth proportional to 608,698,868.34, 840,006,051.68 and 330,240,391.88 is: 455,732,616.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,698,868.34 : 840,006,051.68 = 330,240,391.88 : x
  2. Step 2: Convert to fraction form
    608,698,868.34/840,006,051.68 = 330,240,391.88/x
  3. Step 3: Cross multiply
    608,698,868.34x = 840,006,051.68 × 330,240,391.88
  4. Step 4: Simplify right side
    608,698,868.34x = 277,403,927,685,000,320
  5. Step 5: Solve for x
    x = 277,403,927,685,000,320/608,698,868.34
  6. Step 6: Final answer
    x = 455,732,616.10

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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.