Home / 76,316,085.06-105,306,638.46-51,590,070.78

Finding the Fourth Proportional to 76,316,085.06, 105,306,638.46 and 51,590,070.78

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Solution

The fourth proportional to 76,316,085.06, 105,306,638.46 and 51,590,070.78 is: 71,187,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,316,085.06 : 105,306,638.46 = 51,590,070.78 : x
  2. Step 2: Convert to fraction form
    76,316,085.06/105,306,638.46 = 51,590,070.78/x
  3. Step 3: Cross multiply
    76,316,085.06x = 105,306,638.46 × 51,590,070.78
  4. Step 4: Simplify right side
    76,316,085.06x = 5,432,776,931,755,270
  5. Step 5: Solve for x
    x = 5,432,776,931,755,270/76,316,085.06
  6. Step 6: Final answer
    x = 71,187,835.79

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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.