Home / 128,990,762.64-193,513,437.72-42,724,285.20

Finding the Fourth Proportional to 128,990,762.64, 193,513,437.72 and 42,724,285.20

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Solution

The fourth proportional to 128,990,762.64, 193,513,437.72 and 42,724,285.20 is: 64,095,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,990,762.64 : 193,513,437.72 = 42,724,285.20 : x
  2. Step 2: Convert to fraction form
    128,990,762.64/193,513,437.72 = 42,724,285.20/x
  3. Step 3: Cross multiply
    128,990,762.64x = 193,513,437.72 × 42,724,285.20
  4. Step 4: Simplify right side
    128,990,762.64x = 8,267,723,303,181,718
  5. Step 5: Solve for x
    x = 8,267,723,303,181,718/128,990,762.64
  6. Step 6: Final answer
    x = 64,095,468.03

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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.