Home / 525,429,264.87-725,107,518.75-290,495,058.98

Finding the Fourth Proportional to 525,429,264.87, 725,107,518.75 and 290,495,058.98

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Solution

The fourth proportional to 525,429,264.87, 725,107,518.75 and 290,495,058.98 is: 400,891,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,429,264.87 : 725,107,518.75 = 290,495,058.98 : x
  2. Step 2: Convert to fraction form
    525,429,264.87/725,107,518.75 = 290,495,058.98/x
  3. Step 3: Cross multiply
    525,429,264.87x = 725,107,518.75 × 290,495,058.98
  4. Step 4: Simplify right side
    525,429,264.87x = 210,640,151,426,122,720
  5. Step 5: Solve for x
    x = 210,640,151,426,122,720/525,429,264.87
  6. Step 6: Final answer
    x = 400,891,548.13

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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.