Home / 163,735,009.20-245,602,513.80-77,641,567.20

Finding the Fourth Proportional to 163,735,009.20, 245,602,513.80 and 77,641,567.20

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Solution

The fourth proportional to 163,735,009.20, 245,602,513.80 and 77,641,567.20 is: 116,462,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,735,009.20 : 245,602,513.80 = 77,641,567.20 : x
  2. Step 2: Convert to fraction form
    163,735,009.20/245,602,513.80 = 77,641,567.20/x
  3. Step 3: Cross multiply
    163,735,009.20x = 245,602,513.80 × 77,641,567.20
  4. Step 4: Simplify right side
    163,735,009.20x = 19,068,964,079,691,628
  5. Step 5: Solve for x
    x = 19,068,964,079,691,628/163,735,009.20
  6. Step 6: Final answer
    x = 116,462,350.80

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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.