Home / 380,823,655.04-525,547,729.44-215,805,737.60

Finding the Fourth Proportional to 380,823,655.04, 525,547,729.44 and 215,805,737.60

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Solution

The fourth proportional to 380,823,655.04, 525,547,729.44 and 215,805,737.60 is: 297,818,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,823,655.04 : 525,547,729.44 = 215,805,737.60 : x
  2. Step 2: Convert to fraction form
    380,823,655.04/525,547,729.44 = 215,805,737.60/x
  3. Step 3: Cross multiply
    380,823,655.04x = 525,547,729.44 × 215,805,737.60
  4. Step 4: Simplify right side
    380,823,655.04x = 113,416,215,395,804,432
  5. Step 5: Solve for x
    x = 113,416,215,395,804,432/380,823,655.04
  6. Step 6: Final answer
    x = 297,818,199.83

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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.