Home / 718,890,638,219.10-992,100,265,700.35-398,106,473,327.13

Finding the Fourth Proportional to 718,890,638,219.10, 992,100,265,700.35 and 398,106,473,327.13

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Solution

The fourth proportional to 718,890,638,219.10, 992,100,265,700.35 and 398,106,473,327.13 is: 549,404,202,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,219.10 : 992,100,265,700.35 = 398,106,473,327.13 : x
  2. Step 2: Convert to fraction form
    718,890,638,219.10/992,100,265,700.35 = 398,106,473,327.13/x
  3. Step 3: Cross multiply
    718,890,638,219.10x = 992,100,265,700.35 × 398,106,473,327.13
  4. Step 4: Simplify right side
    718,890,638,219.10x = 394,961,537,964,874,989,043,712
  5. Step 5: Solve for x
    x = 394,961,537,964,874,989,043,712/718,890,638,219.10
  6. Step 6: Final answer
    x = 549,404,202,763.45

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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.