Home / 153,010,775.12-211,162,339.68-86,050,803.20

Finding the Fourth Proportional to 153,010,775.12, 211,162,339.68 and 86,050,803.20

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Solution

The fourth proportional to 153,010,775.12, 211,162,339.68 and 86,050,803.20 is: 118,754,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,010,775.12 : 211,162,339.68 = 86,050,803.20 : x
  2. Step 2: Convert to fraction form
    153,010,775.12/211,162,339.68 = 86,050,803.20/x
  3. Step 3: Cross multiply
    153,010,775.12x = 211,162,339.68 × 86,050,803.20
  4. Step 4: Simplify right side
    153,010,775.12x = 18,170,688,935,055,232
  5. Step 5: Solve for x
    x = 18,170,688,935,055,232/153,010,775.12
  6. Step 6: Final answer
    x = 118,754,309.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.