Home / 513,942,638,145.55-709,257,849,720.10-282,464,362,276.35

Finding the Fourth Proportional to 513,942,638,145.55, 709,257,849,720.10 and 282,464,362,276.35

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Solution

The fourth proportional to 513,942,638,145.55, 709,257,849,720.10 and 282,464,362,276.35 is: 389,810,168,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,942,638,145.55 : 709,257,849,720.10 = 282,464,362,276.35 : x
  2. Step 2: Convert to fraction form
    513,942,638,145.55/709,257,849,720.10 = 282,464,362,276.35/x
  3. Step 3: Cross multiply
    513,942,638,145.55x = 709,257,849,720.10 × 282,464,362,276.35
  4. Step 4: Simplify right side
    513,942,638,145.55x = 200,340,066,210,683,295,891,456
  5. Step 5: Solve for x
    x = 200,340,066,210,683,295,891,456/513,942,638,145.55
  6. Step 6: Final answer
    x = 389,810,168,180.57

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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.