Home / 257,852,955.60-386,779,433.40-206,834,619.60

Finding the Fourth Proportional to 257,852,955.60, 386,779,433.40 and 206,834,619.60

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Solution

The fourth proportional to 257,852,955.60, 386,779,433.40 and 206,834,619.60 is: 310,251,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,852,955.60 : 386,779,433.40 = 206,834,619.60 : x
  2. Step 2: Convert to fraction form
    257,852,955.60/386,779,433.40 = 206,834,619.60/x
  3. Step 3: Cross multiply
    257,852,955.60x = 386,779,433.40 × 206,834,619.60
  4. Step 4: Simplify right side
    257,852,955.60x = 79,999,376,976,392,528
  5. Step 5: Solve for x
    x = 79,999,376,976,392,528/257,852,955.60
  6. Step 6: Final answer
    x = 310,251,929.40

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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.