Home / 402,395,791,521.85-555,307,918,701.69-219,496,878,974.10

Finding the Fourth Proportional to 402,395,791,521.85, 555,307,918,701.69 and 219,496,878,974.10

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Solution

The fourth proportional to 402,395,791,521.85, 555,307,918,701.69 and 219,496,878,974.10 is: 302,906,634,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,395,791,521.85 : 555,307,918,701.69 = 219,496,878,974.10 : x
  2. Step 2: Convert to fraction form
    402,395,791,521.85/555,307,918,701.69 = 219,496,878,974.10/x
  3. Step 3: Cross multiply
    402,395,791,521.85x = 555,307,918,701.69 × 219,496,878,974.10
  4. Step 4: Simplify right side
    402,395,791,521.85x = 121,888,355,024,624,209,100,800
  5. Step 5: Solve for x
    x = 121,888,355,024,624,209,100,800/402,395,791,521.85
  6. Step 6: Final answer
    x = 302,906,634,693.29

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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.