Home / 70,136,686,203.84-105,222,570,798.96-20,450,008,489.68

Finding the Fourth Proportional to 70,136,686,203.84, 105,222,570,798.96 and 20,450,008,489.68

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Solution

The fourth proportional to 70,136,686,203.84, 105,222,570,798.96 and 20,450,008,489.68 is: 30,680,127,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136,686,203.84 : 105,222,570,798.96 = 20,450,008,489.68 : x
  2. Step 2: Convert to fraction form
    70,136,686,203.84/105,222,570,798.96 = 20,450,008,489.68/x
  3. Step 3: Cross multiply
    70,136,686,203.84x = 105,222,570,798.96 × 20,450,008,489.68
  4. Step 4: Simplify right side
    70,136,686,203.84x = 2,151,802,466,144,686,964,736
  5. Step 5: Solve for x
    x = 2,151,802,466,144,686,964,736/70,136,686,203.84
  6. Step 6: Final answer
    x = 30,680,127,371.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.