Home / 30,721,683,421.56-42,395,697,414.54-17,355,433,662.84

Finding the Fourth Proportional to 30,721,683,421.56, 42,395,697,414.54 and 17,355,433,662.84

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Solution

The fourth proportional to 30,721,683,421.56, 42,395,697,414.54 and 17,355,433,662.84 is: 23,950,370,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,721,683,421.56 : 42,395,697,414.54 = 17,355,433,662.84 : x
  2. Step 2: Convert to fraction form
    30,721,683,421.56/42,395,697,414.54 = 17,355,433,662.84/x
  3. Step 3: Cross multiply
    30,721,683,421.56x = 42,395,697,414.54 × 17,355,433,662.84
  4. Step 4: Simplify right side
    30,721,683,421.56x = 735,795,714,067,886,243,840
  5. Step 5: Solve for x
    x = 735,795,714,067,886,243,840/30,721,683,421.56
  6. Step 6: Final answer
    x = 23,950,370,947.17

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Double scale
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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.