Home / 309,824,060.70-427,564,870.88-168,703,017.58

Finding the Fourth Proportional to 309,824,060.70, 427,564,870.88 and 168,703,017.58

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Solution

The fourth proportional to 309,824,060.70, 427,564,870.88 and 168,703,017.58 is: 232,814,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,824,060.70 : 427,564,870.88 = 168,703,017.58 : x
  2. Step 2: Convert to fraction form
    309,824,060.70/427,564,870.88 = 168,703,017.58/x
  3. Step 3: Cross multiply
    309,824,060.70x = 427,564,870.88 × 168,703,017.58
  4. Step 4: Simplify right side
    309,824,060.70x = 72,131,483,926,746,640
  5. Step 5: Solve for x
    x = 72,131,483,926,746,640/309,824,060.70
  6. Step 6: Final answer
    x = 232,814,339.09

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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.