Home / 312,750,681.32-431,596,005.60-173,521,110.92

Finding the Fourth Proportional to 312,750,681.32, 431,596,005.60 and 173,521,110.92

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Solution

The fourth proportional to 312,750,681.32, 431,596,005.60 and 173,521,110.92 is: 239,459,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,750,681.32 : 431,596,005.60 = 173,521,110.92 : x
  2. Step 2: Convert to fraction form
    312,750,681.32/431,596,005.60 = 173,521,110.92/x
  3. Step 3: Cross multiply
    312,750,681.32x = 431,596,005.60 × 173,521,110.92
  4. Step 4: Simplify right side
    312,750,681.32x = 74,891,018,360,346,544
  5. Step 5: Solve for x
    x = 74,891,018,360,346,544/312,750,681.32
  6. Step 6: Final answer
    x = 239,459,169.34

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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.