Home / 123,781,763.84-170,808,827.76-71,574,185.60

Finding the Fourth Proportional to 123,781,763.84, 170,808,827.76 and 71,574,185.60

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Solution

The fourth proportional to 123,781,763.84, 170,808,827.76 and 71,574,185.60 is: 98,766,590.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781,763.84 : 170,808,827.76 = 71,574,185.60 : x
  2. Step 2: Convert to fraction form
    123,781,763.84/170,808,827.76 = 71,574,185.60/x
  3. Step 3: Cross multiply
    123,781,763.84x = 170,808,827.76 × 71,574,185.60
  4. Step 4: Simplify right side
    123,781,763.84x = 12,225,502,740,212,670
  5. Step 5: Solve for x
    x = 12,225,502,740,212,670/123,781,763.84
  6. Step 6: Final answer
    x = 98,766,590.17

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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.