Home / 208,547,196.13-287,801,737.10-120,439,592.77

Finding the Fourth Proportional to 208,547,196.13, 287,801,737.10 and 120,439,592.77

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Solution

The fourth proportional to 208,547,196.13, 287,801,737.10 and 120,439,592.77 is: 166,210,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,547,196.13 : 287,801,737.10 = 120,439,592.77 : x
  2. Step 2: Convert to fraction form
    208,547,196.13/287,801,737.10 = 120,439,592.77/x
  3. Step 3: Cross multiply
    208,547,196.13x = 287,801,737.10 × 120,439,592.77
  4. Step 4: Simplify right side
    208,547,196.13x = 34,662,724,014,822,604
  5. Step 5: Solve for x
    x = 34,662,724,014,822,604/208,547,196.13
  6. Step 6: Final answer
    x = 166,210,453.36

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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.