Home / 312,849,783-432,091,018.35-206,036,587.98

Finding the Fourth Proportional to 312,849,783, 432,091,018.35 and 206,036,587.98

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Solution

The fourth proportional to 312,849,783, 432,091,018.35 and 206,036,587.98 is: 284,566,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,849,783 : 432,091,018.35 = 206,036,587.98 : x
  2. Step 2: Convert to fraction form
    312,849,783/432,091,018.35 = 206,036,587.98/x
  3. Step 3: Cross multiply
    312,849,783x = 432,091,018.35 × 206,036,587.98
  4. Step 4: Simplify right side
    312,849,783x = 89,026,559,117,637,568
  5. Step 5: Solve for x
    x = 89,026,559,117,637,568/312,849,783
  6. Step 6: Final answer
    x = 284,566,472.33

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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.