Home / 689,890,483.02-952,044,023.39-376,624,696.98

Finding the Fourth Proportional to 689,890,483.02, 952,044,023.39 and 376,624,696.98

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Solution

The fourth proportional to 689,890,483.02, 952,044,023.39 and 376,624,696.98 is: 519,739,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,890,483.02 : 952,044,023.39 = 376,624,696.98 : x
  2. Step 2: Convert to fraction form
    689,890,483.02/952,044,023.39 = 376,624,696.98/x
  3. Step 3: Cross multiply
    689,890,483.02x = 952,044,023.39 × 376,624,696.98
  4. Step 4: Simplify right side
    689,890,483.02x = 358,563,291,818,995,648
  5. Step 5: Solve for x
    x = 358,563,291,818,995,648/689,890,483.02
  6. Step 6: Final answer
    x = 519,739,437.84

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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.