Home / 832,708,438.20-1,248,166,862.10-314,938,812.60

Finding the Fourth Proportional to 832,708,438.20, 1,248,166,862.10 and 314,938,812.60

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Solution

The fourth proportional to 832,708,438.20, 1,248,166,862.10 and 314,938,812.60 is: 472,069,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,708,438.20 : 1,248,166,862.10 = 314,938,812.60 : x
  2. Step 2: Convert to fraction form
    832,708,438.20/1,248,166,862.10 = 314,938,812.60/x
  3. Step 3: Cross multiply
    832,708,438.20x = 1,248,166,862.10 × 314,938,812.60
  4. Step 4: Simplify right side
    832,708,438.20x = 393,096,189,476,441,920
  5. Step 5: Solve for x
    x = 393,096,189,476,441,920/832,708,438.20
  6. Step 6: Final answer
    x = 472,069,420.03

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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.