Home / 738,963,554.28-1,019,772,408.06-399,872,031

Finding the Fourth Proportional to 738,963,554.28, 1,019,772,408.06 and 399,872,031

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Solution

The fourth proportional to 738,963,554.28, 1,019,772,408.06 and 399,872,031 is: 551,824,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,963,554.28 : 1,019,772,408.06 = 399,872,031 : x
  2. Step 2: Convert to fraction form
    738,963,554.28/1,019,772,408.06 = 399,872,031/x
  3. Step 3: Cross multiply
    738,963,554.28x = 1,019,772,408.06 × 399,872,031
  4. Step 4: Simplify right side
    738,963,554.28x = 407,778,463,968,712,960
  5. Step 5: Solve for x
    x = 407,778,463,968,712,960/738,963,554.28
  6. Step 6: Final answer
    x = 551,824,865.53

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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.