Home / 685,559,628.38-946,361,925.83-462,843,001.95

Finding the Fourth Proportional to 685,559,628.38, 946,361,925.83 and 462,843,001.95

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Solution

The fourth proportional to 685,559,628.38, 946,361,925.83 and 462,843,001.95 is: 638,918,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,559,628.38 : 946,361,925.83 = 462,843,001.95 : x
  2. Step 2: Convert to fraction form
    685,559,628.38/946,361,925.83 = 462,843,001.95/x
  3. Step 3: Cross multiply
    685,559,628.38x = 946,361,925.83 × 462,843,001.95
  4. Step 4: Simplify right side
    685,559,628.38x = 438,016,994,682,340,480
  5. Step 5: Solve for x
    x = 438,016,994,682,340,480/685,559,628.38
  6. Step 6: Final answer
    x = 638,918,886.92

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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.