Home / 346,755,841.40-520,144,726.26-128,460,815.48

Finding the Fourth Proportional to 346,755,841.40, 520,144,726.26 and 128,460,815.48

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Solution

The fourth proportional to 346,755,841.40, 520,144,726.26 and 128,460,815.48 is: 192,695,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,755,841.40 : 520,144,726.26 = 128,460,815.48 : x
  2. Step 2: Convert to fraction form
    346,755,841.40/520,144,726.26 = 128,460,815.48/x
  3. Step 3: Cross multiply
    346,755,841.40x = 520,144,726.26 × 128,460,815.48
  4. Step 4: Simplify right side
    346,755,841.40x = 66,818,215,702,980,968
  5. Step 5: Solve for x
    x = 66,818,215,702,980,968/346,755,841.40
  6. Step 6: Final answer
    x = 192,695,285.05

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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.