Home / 811,507,252.50-1,119,880,008.45-463,834,205.46

Finding the Fourth Proportional to 811,507,252.50, 1,119,880,008.45 and 463,834,205.46

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Solution

The fourth proportional to 811,507,252.50, 1,119,880,008.45 and 463,834,205.46 is: 640,091,203.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,507,252.50 : 1,119,880,008.45 = 463,834,205.46 : x
  2. Step 2: Convert to fraction form
    811,507,252.50/1,119,880,008.45 = 463,834,205.46/x
  3. Step 3: Cross multiply
    811,507,252.50x = 1,119,880,008.45 × 463,834,205.46
  4. Step 4: Simplify right side
    811,507,252.50x = 519,438,653,929,943,808
  5. Step 5: Solve for x
    x = 519,438,653,929,943,808/811,507,252.50
  6. Step 6: Final answer
    x = 640,091,203.53

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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.