Home / 108,439,681.80-149,645,228.71-61,395,541.35

Finding the Fourth Proportional to 108,439,681.80, 149,645,228.71 and 61,395,541.35

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Solution

The fourth proportional to 108,439,681.80, 149,645,228.71 and 61,395,541.35 is: 84,724,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,439,681.80 : 149,645,228.71 = 61,395,541.35 : x
  2. Step 2: Convert to fraction form
    108,439,681.80/149,645,228.71 = 61,395,541.35/x
  3. Step 3: Cross multiply
    108,439,681.80x = 149,645,228.71 × 61,395,541.35
  4. Step 4: Simplify right side
    108,439,681.80x = 9,187,549,826,495,778
  5. Step 5: Solve for x
    x = 9,187,549,826,495,778/108,439,681.80
  6. Step 6: Final answer
    x = 84,724,979.58

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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.