Home / 280,164,275.73-386,622,664.65-154,721,779.47

Finding the Fourth Proportional to 280,164,275.73, 386,622,664.65 and 154,721,779.47

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Solution

The fourth proportional to 280,164,275.73, 386,622,664.65 and 154,721,779.47 is: 213,513,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,164,275.73 : 386,622,664.65 = 154,721,779.47 : x
  2. Step 2: Convert to fraction form
    280,164,275.73/386,622,664.65 = 154,721,779.47/x
  3. Step 3: Cross multiply
    280,164,275.73x = 386,622,664.65 × 154,721,779.47
  4. Step 4: Simplify right side
    280,164,275.73x = 59,818,946,658,081,064
  5. Step 5: Solve for x
    x = 59,818,946,658,081,064/280,164,275.73
  6. Step 6: Final answer
    x = 213,513,826.85

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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.