Home / 373,306,196,647.67-515,157,068,828.70-208,510,120,715.20

Finding the Fourth Proportional to 373,306,196,647.67, 515,157,068,828.70 and 208,510,120,715.20

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Solution

The fourth proportional to 373,306,196,647.67, 515,157,068,828.70 and 208,510,120,715.20 is: 287,740,904,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,306,196,647.67 : 515,157,068,828.70 = 208,510,120,715.20 : x
  2. Step 2: Convert to fraction form
    373,306,196,647.67/515,157,068,828.70 = 208,510,120,715.20/x
  3. Step 3: Cross multiply
    373,306,196,647.67x = 515,157,068,828.70 × 208,510,120,715.20
  4. Step 4: Simplify right side
    373,306,196,647.67x = 107,415,462,608,760,842,747,904
  5. Step 5: Solve for x
    x = 107,415,462,608,760,842,747,904/373,306,196,647.67
  6. Step 6: Final answer
    x = 287,740,904,312.23

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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.