Home / 142,484,068.16-196,628,392.58-77,293,972.16

Finding the Fourth Proportional to 142,484,068.16, 196,628,392.58 and 77,293,972.16

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Solution

The fourth proportional to 142,484,068.16, 196,628,392.58 and 77,293,972.16 is: 106,665,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,068.16 : 196,628,392.58 = 77,293,972.16 : x
  2. Step 2: Convert to fraction form
    142,484,068.16/196,628,392.58 = 77,293,972.16/x
  3. Step 3: Cross multiply
    142,484,068.16x = 196,628,392.58 × 77,293,972.16
  4. Step 4: Simplify right side
    142,484,068.16x = 15,198,189,500,574,458
  5. Step 5: Solve for x
    x = 15,198,189,500,574,458/142,484,068.16
  6. Step 6: Final answer
    x = 106,665,886.91

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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.