Home / 142,539,663.65-196,704,735.86-77,349,567.65

Finding the Fourth Proportional to 142,539,663.65, 196,704,735.86 and 77,349,567.65

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Solution

The fourth proportional to 142,539,663.65, 196,704,735.86 and 77,349,567.65 is: 106,742,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539,663.65 : 196,704,735.86 = 77,349,567.65 : x
  2. Step 2: Convert to fraction form
    142,539,663.65/196,704,735.86 = 77,349,567.65/x
  3. Step 3: Cross multiply
    142,539,663.65x = 196,704,735.86 × 77,349,567.65
  4. Step 4: Simplify right side
    142,539,663.65x = 15,215,026,273,091,704
  5. Step 5: Solve for x
    x = 15,215,026,273,091,704/142,539,663.65
  6. Step 6: Final answer
    x = 106,742,403.37

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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.