Home / 724,286,937.09-999,540,089.47-406,803,045.48

Finding the Fourth Proportional to 724,286,937.09, 999,540,089.47 and 406,803,045.48

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Solution

The fourth proportional to 724,286,937.09, 999,540,089.47 and 406,803,045.48 is: 561,401,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,286,937.09 : 999,540,089.47 = 406,803,045.48 : x
  2. Step 2: Convert to fraction form
    724,286,937.09/999,540,089.47 = 406,803,045.48/x
  3. Step 3: Cross multiply
    724,286,937.09x = 999,540,089.47 × 406,803,045.48
  4. Step 4: Simplify right side
    724,286,937.09x = 406,615,952,475,747,712
  5. Step 5: Solve for x
    x = 406,615,952,475,747,712/724,286,937.09
  6. Step 6: Final answer
    x = 561,401,747.92

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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.