Home / 689,768,130.10-951,737,923.89-396,356,011.06

Finding the Fourth Proportional to 689,768,130.10, 951,737,923.89 and 396,356,011.06

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Solution

The fourth proportional to 689,768,130.10, 951,737,923.89 and 396,356,011.06 is: 546,889,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,130.10 : 951,737,923.89 = 396,356,011.06 : x
  2. Step 2: Convert to fraction form
    689,768,130.10/951,737,923.89 = 396,356,011.06/x
  3. Step 3: Cross multiply
    689,768,130.10x = 951,737,923.89 × 396,356,011.06
  4. Step 4: Simplify right side
    689,768,130.10x = 377,227,047,087,566,272
  5. Step 5: Solve for x
    x = 377,227,047,087,566,272/689,768,130.10
  6. Step 6: Final answer
    x = 546,889,643.96

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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.