Home / 1,431,648,649.18-1,975,644,169.71-828,844,692.98

Finding the Fourth Proportional to 1,431,648,649.18, 1,975,644,169.71 and 828,844,692.98

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Solution

The fourth proportional to 1,431,648,649.18, 1,975,644,169.71 and 828,844,692.98 is: 1,143,787,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,648,649.18 : 1,975,644,169.71 = 828,844,692.98 : x
  2. Step 2: Convert to fraction form
    1,431,648,649.18/1,975,644,169.71 = 828,844,692.98/x
  3. Step 3: Cross multiply
    1,431,648,649.18x = 1,975,644,169.71 × 828,844,692.98
  4. Step 4: Simplify right side
    1,431,648,649.18x = 1,637,502,185,283,851,264
  5. Step 5: Solve for x
    x = 1,637,502,185,283,851,264/1,431,648,649.18
  6. Step 6: Final answer
    x = 1,143,787,748.64

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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.