Home / 563,291,851.46-777,389,290.79-312,477,109.02

Finding the Fourth Proportional to 563,291,851.46, 777,389,290.79 and 312,477,109.02

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Solution

The fourth proportional to 563,291,851.46, 777,389,290.79 and 312,477,109.02 is: 431,244,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,291,851.46 : 777,389,290.79 = 312,477,109.02 : x
  2. Step 2: Convert to fraction form
    563,291,851.46/777,389,290.79 = 312,477,109.02/x
  3. Step 3: Cross multiply
    563,291,851.46x = 777,389,290.79 × 312,477,109.02
  4. Step 4: Simplify right side
    563,291,851.46x = 242,916,358,167,604,896
  5. Step 5: Solve for x
    x = 242,916,358,167,604,896/563,291,851.46
  6. Step 6: Final answer
    x = 431,244,225.42

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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.