Home / 877,008,530.79-1,315,410,395.18-352,356,394.32

Finding the Fourth Proportional to 877,008,530.79, 1,315,410,395.18 and 352,356,394.32

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Solution

The fourth proportional to 877,008,530.79, 1,315,410,395.18 and 352,356,394.32 is: 528,493,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,008,530.79 : 1,315,410,395.18 = 352,356,394.32 : x
  2. Step 2: Convert to fraction form
    877,008,530.79/1,315,410,395.18 = 352,356,394.32/x
  3. Step 3: Cross multiply
    877,008,530.79x = 1,315,410,395.18 × 352,356,394.32
  4. Step 4: Simplify right side
    877,008,530.79x = 463,493,263,894,909,312
  5. Step 5: Solve for x
    x = 463,493,263,894,909,312/877,008,530.79
  6. Step 6: Final answer
    x = 528,493,449.75

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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.