Home / 626,139,329.04-864,151,990.02-378,622,454.76

Finding the Fourth Proportional to 626,139,329.04, 864,151,990.02 and 378,622,454.76

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Solution

The fourth proportional to 626,139,329.04, 864,151,990.02 and 378,622,454.76 is: 522,547,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,139,329.04 : 864,151,990.02 = 378,622,454.76 : x
  2. Step 2: Convert to fraction form
    626,139,329.04/864,151,990.02 = 378,622,454.76/x
  3. Step 3: Cross multiply
    626,139,329.04x = 864,151,990.02 × 378,622,454.76
  4. Step 4: Simplify right side
    626,139,329.04x = 327,187,347,747,111,424
  5. Step 5: Solve for x
    x = 327,187,347,747,111,424/626,139,329.04
  6. Step 6: Final answer
    x = 522,547,191.29

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1.5x scale

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.