Home / 689,220,817.17-951,130,797.80-375,956,424.33

Finding the Fourth Proportional to 689,220,817.17, 951,130,797.80 and 375,956,424.33

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Solution

The fourth proportional to 689,220,817.17, 951,130,797.80 and 375,956,424.33 is: 518,823,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,220,817.17 : 951,130,797.80 = 375,956,424.33 : x
  2. Step 2: Convert to fraction form
    689,220,817.17/951,130,797.80 = 375,956,424.33/x
  3. Step 3: Cross multiply
    689,220,817.17x = 951,130,797.80 × 375,956,424.33
  4. Step 4: Simplify right side
    689,220,817.17x = 357,583,733,809,148,416
  5. Step 5: Solve for x
    x = 357,583,733,809,148,416/689,220,817.17
  6. Step 6: Final answer
    x = 518,823,176.70

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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.