Home / 105,326,631.04-145,292,220.16-61,268,673.28

Finding the Fourth Proportional to 105,326,631.04, 145,292,220.16 and 61,268,673.28

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Solution

The fourth proportional to 105,326,631.04, 145,292,220.16 and 61,268,673.28 is: 84,516,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,326,631.04 : 145,292,220.16 = 61,268,673.28 : x
  2. Step 2: Convert to fraction form
    105,326,631.04/145,292,220.16 = 61,268,673.28/x
  3. Step 3: Cross multiply
    105,326,631.04x = 145,292,220.16 × 61,268,673.28
  4. Step 4: Simplify right side
    105,326,631.04x = 8,901,861,567,108,869
  5. Step 5: Solve for x
    x = 8,901,861,567,108,869/105,326,631.04
  6. Step 6: Final answer
    x = 84,516,721.74

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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.