Home / 708,431,156.07-977,587,756.16-407,026,164.39

Finding the Fourth Proportional to 708,431,156.07, 977,587,756.16 and 407,026,164.39

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Solution

The fourth proportional to 708,431,156.07, 977,587,756.16 and 407,026,164.39 is: 561,668,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,431,156.07 : 977,587,756.16 = 407,026,164.39 : x
  2. Step 2: Convert to fraction form
    708,431,156.07/977,587,756.16 = 407,026,164.39/x
  3. Step 3: Cross multiply
    708,431,156.07x = 977,587,756.16 × 407,026,164.39
  4. Step 4: Simplify right side
    708,431,156.07x = 397,903,794,742,396,224
  5. Step 5: Solve for x
    x = 397,903,794,742,396,224/708,431,156.07
  6. Step 6: Final answer
    x = 561,668,965.76

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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.