Home / 313,689,995.16-432,889,799.53-172,558,176.62

Finding the Fourth Proportional to 313,689,995.16, 432,889,799.53 and 172,558,176.62

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Solution

The fourth proportional to 313,689,995.16, 432,889,799.53 and 172,558,176.62 is: 238,128,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,689,995.16 : 432,889,799.53 = 172,558,176.62 : x
  2. Step 2: Convert to fraction form
    313,689,995.16/432,889,799.53 = 172,558,176.62/x
  3. Step 3: Cross multiply
    313,689,995.16x = 432,889,799.53 × 172,558,176.62
  4. Step 4: Simplify right side
    313,689,995.16x = 74,698,674,483,239,120
  5. Step 5: Solve for x
    x = 74,698,674,483,239,120/313,689,995.16
  6. Step 6: Final answer
    x = 238,128,966.93

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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.