Home / 406,943,988.30-610,415,982.45-391,071,617.10

Finding the Fourth Proportional to 406,943,988.30, 610,415,982.45 and 391,071,617.10

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Solution

The fourth proportional to 406,943,988.30, 610,415,982.45 and 391,071,617.10 is: 586,607,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,943,988.30 : 610,415,982.45 = 391,071,617.10 : x
  2. Step 2: Convert to fraction form
    406,943,988.30/610,415,982.45 = 391,071,617.10/x
  3. Step 3: Cross multiply
    406,943,988.30x = 610,415,982.45 × 391,071,617.10
  4. Step 4: Simplify right side
    406,943,988.30x = 238,716,365,360,406,752
  5. Step 5: Solve for x
    x = 238,716,365,360,406,752/406,943,988.30
  6. Step 6: Final answer
    x = 586,607,425.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.