Home / 631,123,574.90-870,933,826.40-352,667,386.58

Finding the Fourth Proportional to 631,123,574.90, 870,933,826.40 and 352,667,386.58

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Solution

The fourth proportional to 631,123,574.90, 870,933,826.40 and 352,667,386.58 is: 486,671,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,574.90 : 870,933,826.40 = 352,667,386.58 : x
  2. Step 2: Convert to fraction form
    631,123,574.90/870,933,826.40 = 352,667,386.58/x
  3. Step 3: Cross multiply
    631,123,574.90x = 870,933,826.40 × 352,667,386.58
  4. Step 4: Simplify right side
    631,123,574.90x = 307,149,956,440,607,360
  5. Step 5: Solve for x
    x = 307,149,956,440,607,360/631,123,574.90
  6. Step 6: Final answer
    x = 486,671,657.75

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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.