Home / 86,012,482.08-129,020,035.44-31,436,159.52

Finding the Fourth Proportional to 86,012,482.08, 129,020,035.44 and 31,436,159.52

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Solution

The fourth proportional to 86,012,482.08, 129,020,035.44 and 31,436,159.52 is: 47,154,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,012,482.08 : 129,020,035.44 = 31,436,159.52 : x
  2. Step 2: Convert to fraction form
    86,012,482.08/129,020,035.44 = 31,436,159.52/x
  3. Step 3: Cross multiply
    86,012,482.08x = 129,020,035.44 × 31,436,159.52
  4. Step 4: Simplify right side
    86,012,482.08x = 4,055,894,415,367,893.50
  5. Step 5: Solve for x
    x = 4,055,894,415,367,893.50/86,012,482.08
  6. Step 6: Final answer
    x = 47,154,718.91

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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.