Home / 679,210,916.95-937,314,239.55-385,871,581.27

Finding the Fourth Proportional to 679,210,916.95, 937,314,239.55 and 385,871,581.27

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Solution

The fourth proportional to 679,210,916.95, 937,314,239.55 and 385,871,581.27 is: 532,504,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,210,916.95 : 937,314,239.55 = 385,871,581.27 : x
  2. Step 2: Convert to fraction form
    679,210,916.95/937,314,239.55 = 385,871,581.27/x
  3. Step 3: Cross multiply
    679,210,916.95x = 937,314,239.55 × 385,871,581.27
  4. Step 4: Simplify right side
    679,210,916.95x = 361,682,927,763,405,376
  5. Step 5: Solve for x
    x = 361,682,927,763,405,376/679,210,916.95
  6. Step 6: Final answer
    x = 532,504,585.45

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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.