Home / 513,942,638,154.98-709,257,849,733.06-282,464,362,285.72

Finding the Fourth Proportional to 513,942,638,154.98, 709,257,849,733.06 and 282,464,362,285.72

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Solution

The fourth proportional to 513,942,638,154.98, 709,257,849,733.06 and 282,464,362,285.72 is: 389,810,168,193.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,942,638,154.98 : 709,257,849,733.06 = 282,464,362,285.72 : x
  2. Step 2: Convert to fraction form
    513,942,638,154.98/709,257,849,733.06 = 282,464,362,285.72/x
  3. Step 3: Cross multiply
    513,942,638,154.98x = 709,257,849,733.06 × 282,464,362,285.72
  4. Step 4: Simplify right side
    513,942,638,154.98x = 200,340,066,220,989,808,115,712
  5. Step 5: Solve for x
    x = 200,340,066,220,989,808,115,712/513,942,638,154.98
  6. Step 6: Final answer
    x = 389,810,168,193.47

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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.