Home / 563,579,615.64-777,713,520.02-312,681,337.26

Finding the Fourth Proportional to 563,579,615.64, 777,713,520.02 and 312,681,337.26

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Solution

The fourth proportional to 563,579,615.64, 777,713,520.02 and 312,681,337.26 is: 431,485,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,579,615.64 : 777,713,520.02 = 312,681,337.26 : x
  2. Step 2: Convert to fraction form
    563,579,615.64/777,713,520.02 = 312,681,337.26/x
  3. Step 3: Cross multiply
    563,579,615.64x = 777,713,520.02 × 312,681,337.26
  4. Step 4: Simplify right side
    563,579,615.64x = 243,176,503,445,035,360
  5. Step 5: Solve for x
    x = 243,176,503,445,035,360/563,579,615.64
  6. Step 6: Final answer
    x = 431,485,626.34

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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.