Home / 528,085,274.90-792,127,912.35-139,968,007.70

Finding the Fourth Proportional to 528,085,274.90, 792,127,912.35 and 139,968,007.70

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Solution

The fourth proportional to 528,085,274.90, 792,127,912.35 and 139,968,007.70 is: 209,952,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085,274.90 : 792,127,912.35 = 139,968,007.70 : x
  2. Step 2: Convert to fraction form
    528,085,274.90/792,127,912.35 = 139,968,007.70/x
  3. Step 3: Cross multiply
    528,085,274.90x = 792,127,912.35 × 139,968,007.70
  4. Step 4: Simplify right side
    528,085,274.90x = 110,872,565,735,189,712
  5. Step 5: Solve for x
    x = 110,872,565,735,189,712/528,085,274.90
  6. Step 6: Final answer
    x = 209,952,011.55

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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.