Home / 151,764,931-209,463,977.48-86,574,835

Finding the Fourth Proportional to 151,764,931, 209,463,977.48 and 86,574,835

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Solution

The fourth proportional to 151,764,931, 209,463,977.48 and 86,574,835 is: 119,489,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,764,931 : 209,463,977.48 = 86,574,835 : x
  2. Step 2: Convert to fraction form
    151,764,931/209,463,977.48 = 86,574,835/x
  3. Step 3: Cross multiply
    151,764,931x = 209,463,977.48 × 86,574,835
  4. Step 4: Simplify right side
    151,764,931x = 18,134,309,288,774,716
  5. Step 5: Solve for x
    x = 18,134,309,288,774,716/151,764,931
  6. Step 6: Final answer
    x = 119,489,457.61

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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.