Home / 686,552,772.96-947,431,664.82-373,294,875.51

Finding the Fourth Proportional to 686,552,772.96, 947,431,664.82 and 373,294,875.51

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Solution

The fourth proportional to 686,552,772.96, 947,431,664.82 and 373,294,875.51 is: 515,140,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,552,772.96 : 947,431,664.82 = 373,294,875.51 : x
  2. Step 2: Convert to fraction form
    686,552,772.96/947,431,664.82 = 373,294,875.51/x
  3. Step 3: Cross multiply
    686,552,772.96x = 947,431,664.82 × 373,294,875.51
  4. Step 4: Simplify right side
    686,552,772.96x = 353,671,385,373,213,952
  5. Step 5: Solve for x
    x = 353,671,385,373,213,952/686,552,772.96
  6. Step 6: Final answer
    x = 515,140,859.24

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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.