Home / 680,484,741.59-939,032,512.08-374,948,290.64

Finding the Fourth Proportional to 680,484,741.59, 939,032,512.08 and 374,948,290.64

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Solution

The fourth proportional to 680,484,741.59, 939,032,512.08 and 374,948,290.64 is: 517,408,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,484,741.59 : 939,032,512.08 = 374,948,290.64 : x
  2. Step 2: Convert to fraction form
    680,484,741.59/939,032,512.08 = 374,948,290.64/x
  3. Step 3: Cross multiply
    680,484,741.59x = 939,032,512.08 × 374,948,290.64
  4. Step 4: Simplify right side
    680,484,741.59x = 352,088,635,262,841,088
  5. Step 5: Solve for x
    x = 352,088,635,262,841,088/680,484,741.59
  6. Step 6: Final answer
    x = 517,408,567.37

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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.