Home / 105,014,781.40-157,522,172.10-90,859,005.40

Finding the Fourth Proportional to 105,014,781.40, 157,522,172.10 and 90,859,005.40

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Solution

The fourth proportional to 105,014,781.40, 157,522,172.10 and 90,859,005.40 is: 136,288,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014,781.40 : 157,522,172.10 = 90,859,005.40 : x
  2. Step 2: Convert to fraction form
    105,014,781.40/157,522,172.10 = 90,859,005.40/x
  3. Step 3: Cross multiply
    105,014,781.40x = 157,522,172.10 × 90,859,005.40
  4. Step 4: Simplify right side
    105,014,781.40x = 14,312,307,885,453,630
  5. Step 5: Solve for x
    x = 14,312,307,885,453,630/105,014,781.40
  6. Step 6: Final answer
    x = 136,288,508.10

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1.5x scale

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.