Home / 142,436,032.08-213,898,552.74-87,426,886.37

Finding the Fourth Proportional to 142,436,032.08, 213,898,552.74 and 87,426,886.37

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Solution

The fourth proportional to 142,436,032.08, 213,898,552.74 and 87,426,886.37 is: 131,290,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,436,032.08 : 213,898,552.74 = 87,426,886.37 : x
  2. Step 2: Convert to fraction form
    142,436,032.08/213,898,552.74 = 87,426,886.37/x
  3. Step 3: Cross multiply
    142,436,032.08x = 213,898,552.74 × 87,426,886.37
  4. Step 4: Simplify right side
    142,436,032.08x = 18,700,484,464,037,940
  5. Step 5: Solve for x
    x = 18,700,484,464,037,940/142,436,032.08
  6. Step 6: Final answer
    x = 131,290,405.88

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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.