Home / 420,058,029.60-630,087,044.40-363,434,925.60

Finding the Fourth Proportional to 420,058,029.60, 630,087,044.40 and 363,434,925.60

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Solution

The fourth proportional to 420,058,029.60, 630,087,044.40 and 363,434,925.60 is: 545,152,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,058,029.60 : 630,087,044.40 = 363,434,925.60 : x
  2. Step 2: Convert to fraction form
    420,058,029.60/630,087,044.40 = 363,434,925.60/x
  3. Step 3: Cross multiply
    420,058,029.60x = 630,087,044.40 × 363,434,925.60
  4. Step 4: Simplify right side
    420,058,029.60x = 228,995,638,103,037,888
  5. Step 5: Solve for x
    x = 228,995,638,103,037,888/420,058,029.60
  6. Step 6: Final answer
    x = 545,152,388.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.