Home / 399,363,475.52-599,016,801.72-122,985,870.32

Finding the Fourth Proportional to 399,363,475.52, 599,016,801.72 and 122,985,870.32

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Solution

The fourth proportional to 399,363,475.52, 599,016,801.72 and 122,985,870.32 is: 184,470,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,363,475.52 : 599,016,801.72 = 122,985,870.32 : x
  2. Step 2: Convert to fraction form
    399,363,475.52/599,016,801.72 = 122,985,870.32/x
  3. Step 3: Cross multiply
    399,363,475.52x = 599,016,801.72 × 122,985,870.32
  4. Step 4: Simplify right side
    399,363,475.52x = 73,670,602,695,837,072
  5. Step 5: Solve for x
    x = 73,670,602,695,837,072/399,363,475.52
  6. Step 6: Final answer
    x = 184,470,056.01

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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.