Home / 689,220,817.67-951,130,798.49-375,956,424.83

Finding the Fourth Proportional to 689,220,817.67, 951,130,798.49 and 375,956,424.83

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Solution

The fourth proportional to 689,220,817.67, 951,130,798.49 and 375,956,424.83 is: 518,823,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,220,817.67 : 951,130,798.49 = 375,956,424.83 : x
  2. Step 2: Convert to fraction form
    689,220,817.67/951,130,798.49 = 375,956,424.83/x
  3. Step 3: Cross multiply
    689,220,817.67x = 951,130,798.49 × 375,956,424.83
  4. Step 4: Simplify right side
    689,220,817.67x = 357,583,734,544,123,776
  5. Step 5: Solve for x
    x = 357,583,734,544,123,776/689,220,817.67
  6. Step 6: Final answer
    x = 518,823,177.39

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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.