Home / 816,455,427.60-1,224,683,141.40-489,938,077.20

Finding the Fourth Proportional to 816,455,427.60, 1,224,683,141.40 and 489,938,077.20

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Solution

The fourth proportional to 816,455,427.60, 1,224,683,141.40 and 489,938,077.20 is: 734,907,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,455,427.60 : 1,224,683,141.40 = 489,938,077.20 : x
  2. Step 2: Convert to fraction form
    816,455,427.60/1,224,683,141.40 = 489,938,077.20/x
  3. Step 3: Cross multiply
    816,455,427.60x = 1,224,683,141.40 × 489,938,077.20
  4. Step 4: Simplify right side
    816,455,427.60x = 600,018,903,476,771,712
  5. Step 5: Solve for x
    x = 600,018,903,476,771,712/816,455,427.60
  6. Step 6: Final answer
    x = 734,907,115.80

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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.