Home / 282,786,312.12-390,238,993.02-163,713,952.20

Finding the Fourth Proportional to 282,786,312.12, 390,238,993.02 and 163,713,952.20

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Solution

The fourth proportional to 282,786,312.12, 390,238,993.02 and 163,713,952.20 is: 225,921,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,786,312.12 : 390,238,993.02 = 163,713,952.20 : x
  2. Step 2: Convert to fraction form
    282,786,312.12/390,238,993.02 = 163,713,952.20/x
  3. Step 3: Cross multiply
    282,786,312.12x = 390,238,993.02 × 163,713,952.20
  4. Step 4: Simplify right side
    282,786,312.12x = 63,887,567,849,852,408
  5. Step 5: Solve for x
    x = 63,887,567,849,852,408/282,786,312.12
  6. Step 6: Final answer
    x = 225,921,712.30

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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.