Home / 528,085,285.40-792,127,928.10-139,968,018.20

Finding the Fourth Proportional to 528,085,285.40, 792,127,928.10 and 139,968,018.20

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Solution

The fourth proportional to 528,085,285.40, 792,127,928.10 and 139,968,018.20 is: 209,952,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085,285.40 : 792,127,928.10 = 139,968,018.20 : x
  2. Step 2: Convert to fraction form
    528,085,285.40/792,127,928.10 = 139,968,018.20/x
  3. Step 3: Cross multiply
    528,085,285.40x = 792,127,928.10 × 139,968,018.20
  4. Step 4: Simplify right side
    528,085,285.40x = 110,872,576,257,029,088
  5. Step 5: Solve for x
    x = 110,872,576,257,029,088/528,085,285.40
  6. Step 6: Final answer
    x = 209,952,027.30

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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.