Home / 563,163,921.90-777,167,886.29-312,285,987.77

Finding the Fourth Proportional to 563,163,921.90, 777,167,886.29 and 312,285,987.77

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Solution

The fourth proportional to 563,163,921.90, 777,167,886.29 and 312,285,987.77 is: 430,955,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,163,921.90 : 777,167,886.29 = 312,285,987.77 : x
  2. Step 2: Convert to fraction form
    563,163,921.90/777,167,886.29 = 312,285,987.77/x
  3. Step 3: Cross multiply
    563,163,921.90x = 777,167,886.29 × 312,285,987.77
  4. Step 4: Simplify right side
    563,163,921.90x = 242,698,641,027,748,384
  5. Step 5: Solve for x
    x = 242,698,641,027,748,384/563,163,921.90
  6. Step 6: Final answer
    x = 430,955,591.42

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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.