Home / 487,362,344.16-730,971,607.68-142,223,301.12

Finding the Fourth Proportional to 487,362,344.16, 730,971,607.68 and 142,223,301.12

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Solution

The fourth proportional to 487,362,344.16, 730,971,607.68 and 142,223,301.12 is: 213,313,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,362,344.16 : 730,971,607.68 = 142,223,301.12 : x
  2. Step 2: Convert to fraction form
    487,362,344.16/730,971,607.68 = 142,223,301.12/x
  3. Step 3: Cross multiply
    487,362,344.16x = 730,971,607.68 × 142,223,301.12
  4. Step 4: Simplify right side
    487,362,344.16x = 103,961,195,069,243,136
  5. Step 5: Solve for x
    x = 103,961,195,069,243,136/487,362,344.16
  6. Step 6: Final answer
    x = 213,313,967.14

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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.