Home / 528,085,278.90-792,127,918.35-139,968,011.70

Finding the Fourth Proportional to 528,085,278.90, 792,127,918.35 and 139,968,011.70

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Solution

The fourth proportional to 528,085,278.90, 792,127,918.35 and 139,968,011.70 is: 209,952,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085,278.90 : 792,127,918.35 = 139,968,011.70 : x
  2. Step 2: Convert to fraction form
    528,085,278.90/792,127,918.35 = 139,968,011.70/x
  3. Step 3: Cross multiply
    528,085,278.90x = 792,127,918.35 × 139,968,011.70
  4. Step 4: Simplify right side
    528,085,278.90x = 110,872,569,743,509,440
  5. Step 5: Solve for x
    x = 110,872,569,743,509,440/528,085,278.90
  6. Step 6: Final answer
    x = 209,952,017.55

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Double scale
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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.