Home / 142,833,787,404.08-197,110,658,792.28-78,604,511,712.36

Finding the Fourth Proportional to 142,833,787,404.08, 197,110,658,792.28 and 78,604,511,712.36

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Solution

The fourth proportional to 142,833,787,404.08, 197,110,658,792.28 and 78,604,511,712.36 is: 108,474,243,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,833,787,404.08 : 197,110,658,792.28 = 78,604,511,712.36 : x
  2. Step 2: Convert to fraction form
    142,833,787,404.08/197,110,658,792.28 = 78,604,511,712.36/x
  3. Step 3: Cross multiply
    142,833,787,404.08x = 197,110,658,792.28 × 78,604,511,712.36
  4. Step 4: Simplify right side
    142,833,787,404.08x = 15,493,787,087,668,768,669,696
  5. Step 5: Solve for x
    x = 15,493,787,087,668,768,669,696/142,833,787,404.08
  6. Step 6: Final answer
    x = 108,474,243,869.46

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1.5x scale

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.