Home / 233,855,491.40-322,720,679.16-128,009,510.45

Finding the Fourth Proportional to 233,855,491.40, 322,720,679.16 and 128,009,510.45

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Solution

The fourth proportional to 233,855,491.40, 322,720,679.16 and 128,009,510.45 is: 176,653,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,855,491.40 : 322,720,679.16 = 128,009,510.45 : x
  2. Step 2: Convert to fraction form
    233,855,491.40/322,720,679.16 = 128,009,510.45/x
  3. Step 3: Cross multiply
    233,855,491.40x = 322,720,679.16 × 128,009,510.45
  4. Step 4: Simplify right side
    233,855,491.40x = 41,311,316,149,749,512
  5. Step 5: Solve for x
    x = 41,311,316,149,749,512/233,855,491.40
  6. Step 6: Final answer
    x = 176,653,179.72

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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.