Home / 385,739,775.72-578,608,088.94-140,095,935.72

Finding the Fourth Proportional to 385,739,775.72, 578,608,088.94 and 140,095,935.72

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Solution

The fourth proportional to 385,739,775.72, 578,608,088.94 and 140,095,935.72 is: 210,143,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,739,775.72 : 578,608,088.94 = 140,095,935.72 : x
  2. Step 2: Convert to fraction form
    385,739,775.72/578,608,088.94 = 140,095,935.72/x
  3. Step 3: Cross multiply
    385,739,775.72x = 578,608,088.94 × 140,095,935.72
  4. Step 4: Simplify right side
    385,739,775.72x = 81,060,641,635,210,288
  5. Step 5: Solve for x
    x = 81,060,641,635,210,288/385,739,775.72
  6. Step 6: Final answer
    x = 210,143,331.69

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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.