Home / 528,048,172.80-792,036,829.80-139,862,671.20

Finding the Fourth Proportional to 528,048,172.80, 792,036,829.80 and 139,862,671.20

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Solution

The fourth proportional to 528,048,172.80, 792,036,829.80 and 139,862,671.20 is: 209,784,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,048,172.80 : 792,036,829.80 = 139,862,671.20 : x
  2. Step 2: Convert to fraction form
    528,048,172.80/792,036,829.80 = 139,862,671.20/x
  3. Step 3: Cross multiply
    528,048,172.80x = 792,036,829.80 × 139,862,671.20
  4. Step 4: Simplify right side
    528,048,172.80x = 110,776,386,704,607,744
  5. Step 5: Solve for x
    x = 110,776,386,704,607,744/528,048,172.80
  6. Step 6: Final answer
    x = 209,784,622.71

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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.