Home / 642,752,044,459.93-886,997,966,137.30-353,720,303,848.47

Finding the Fourth Proportional to 642,752,044,459.93, 886,997,966,137.30 and 353,720,303,848.47

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Solution

The fourth proportional to 642,752,044,459.93, 886,997,966,137.30 and 353,720,303,848.47 is: 488,134,098,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,752,044,459.93 : 886,997,966,137.30 = 353,720,303,848.47 : x
  2. Step 2: Convert to fraction form
    642,752,044,459.93/886,997,966,137.30 = 353,720,303,848.47/x
  3. Step 3: Cross multiply
    642,752,044,459.93x = 886,997,966,137.30 × 353,720,303,848.47
  4. Step 4: Simplify right side
    642,752,044,459.93x = 313,749,190,095,060,636,532,736
  5. Step 5: Solve for x
    x = 313,749,190,095,060,636,532,736/642,752,044,459.93
  6. Step 6: Final answer
    x = 488,134,098,987.87

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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.