Home / 187,289,994,967.67-258,415,894,638.53-105,999,817,890.63

Finding the Fourth Proportional to 187,289,994,967.67, 258,415,894,638.53 and 105,999,817,890.63

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Solution

The fourth proportional to 187,289,994,967.67, 258,415,894,638.53 and 105,999,817,890.63 is: 146,254,677,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,289,994,967.67 : 258,415,894,638.53 = 105,999,817,890.63 : x
  2. Step 2: Convert to fraction form
    187,289,994,967.67/258,415,894,638.53 = 105,999,817,890.63/x
  3. Step 3: Cross multiply
    187,289,994,967.67x = 258,415,894,638.53 × 105,999,817,890.63
  4. Step 4: Simplify right side
    187,289,994,967.67x = 27,392,037,771,728,411,164,672
  5. Step 5: Solve for x
    x = 27,392,037,771,728,411,164,672/187,289,994,967.67
  6. Step 6: Final answer
    x = 146,254,677,279.78

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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.