Home / 142,539,664.65-196,704,737.24-77,349,568.65

Finding the Fourth Proportional to 142,539,664.65, 196,704,737.24 and 77,349,568.65

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Solution

The fourth proportional to 142,539,664.65, 196,704,737.24 and 77,349,568.65 is: 106,742,404.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539,664.65 : 196,704,737.24 = 77,349,568.65 : x
  2. Step 2: Convert to fraction form
    142,539,664.65/196,704,737.24 = 77,349,568.65/x
  3. Step 3: Cross multiply
    142,539,664.65x = 196,704,737.24 × 77,349,568.65
  4. Step 4: Simplify right side
    142,539,664.65x = 15,215,026,576,925,594
  5. Step 5: Solve for x
    x = 15,215,026,576,925,594/142,539,664.65
  6. Step 6: Final answer
    x = 106,742,404.75

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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.