Home / 718,890,638,386.50-992,100,265,931.10-398,106,473,494.50

Finding the Fourth Proportional to 718,890,638,386.50, 992,100,265,931.10 and 398,106,473,494.50

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Solution

The fourth proportional to 718,890,638,386.50, 992,100,265,931.10 and 398,106,473,494.50 is: 549,404,202,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,386.50 : 992,100,265,931.10 = 398,106,473,494.50 : x
  2. Step 2: Convert to fraction form
    718,890,638,386.50/992,100,265,931.10 = 398,106,473,494.50/x
  3. Step 3: Cross multiply
    718,890,638,386.50x = 992,100,265,931.10 × 398,106,473,494.50
  4. Step 4: Simplify right side
    718,890,638,386.50x = 394,961,538,222,785,829,011,456
  5. Step 5: Solve for x
    x = 394,961,538,222,785,829,011,456/718,890,638,386.50
  6. Step 6: Final answer
    x = 549,404,202,994.28

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