Home / 1,640,851,017.76-2,264,012,420.88-971,463,679.84

Finding the Fourth Proportional to 1,640,851,017.76, 2,264,012,420.88 and 971,463,679.84

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Solution

The fourth proportional to 1,640,851,017.76, 2,264,012,420.88 and 971,463,679.84 is: 1,340,405,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,851,017.76 : 2,264,012,420.88 = 971,463,679.84 : x
  2. Step 2: Convert to fraction form
    1,640,851,017.76/2,264,012,420.88 = 971,463,679.84/x
  3. Step 3: Cross multiply
    1,640,851,017.76x = 2,264,012,420.88 × 971,463,679.84
  4. Step 4: Simplify right side
    1,640,851,017.76x = 2,199,405,837,591,551,744
  5. Step 5: Solve for x
    x = 2,199,405,837,591,551,744/1,640,851,017.76
  6. Step 6: Final answer
    x = 1,340,405,566.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.