Home / 785,105,400.69-1,083,445,459.04-432,681,395.38

Finding the Fourth Proportional to 785,105,400.69, 1,083,445,459.04 and 432,681,395.38

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Solution

The fourth proportional to 785,105,400.69, 1,083,445,459.04 and 432,681,395.38 is: 597,100,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,105,400.69 : 1,083,445,459.04 = 432,681,395.38 : x
  2. Step 2: Convert to fraction form
    785,105,400.69/1,083,445,459.04 = 432,681,395.38/x
  3. Step 3: Cross multiply
    785,105,400.69x = 1,083,445,459.04 × 432,681,395.38
  4. Step 4: Simplify right side
    785,105,400.69x = 468,786,693,035,811,968
  5. Step 5: Solve for x
    x = 468,786,693,035,811,968/785,105,400.69
  6. Step 6: Final answer
    x = 597,100,328.98

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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.