Home / 100,812,554.56-139,115,928.06-55,547,895.16

Finding the Fourth Proportional to 100,812,554.56, 139,115,928.06 and 55,547,895.16

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Solution

The fourth proportional to 100,812,554.56, 139,115,928.06 and 55,547,895.16 is: 76,653,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812,554.56 : 139,115,928.06 = 55,547,895.16 : x
  2. Step 2: Convert to fraction form
    100,812,554.56/139,115,928.06 = 55,547,895.16/x
  3. Step 3: Cross multiply
    100,812,554.56x = 139,115,928.06 × 55,547,895.16
  4. Step 4: Simplify right side
    100,812,554.56x = 7,727,596,987,136,878
  5. Step 5: Solve for x
    x = 7,727,596,987,136,878/100,812,554.56
  6. Step 6: Final answer
    x = 76,653,121.44

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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.