Home / 1,005,640,855.35-1,508,525,045-315,575,345.67

Finding the Fourth Proportional to 1,005,640,855.35, 1,508,525,045 and 315,575,345.67

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Solution

The fourth proportional to 1,005,640,855.35, 1,508,525,045 and 315,575,345.67 is: 473,383,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,640,855.35 : 1,508,525,045 = 315,575,345.67 : x
  2. Step 2: Convert to fraction form
    1,005,640,855.35/1,508,525,045 = 315,575,345.67/x
  3. Step 3: Cross multiply
    1,005,640,855.35x = 1,508,525,045 × 315,575,345.67
  4. Step 4: Simplify right side
    1,005,640,855.35x = 476,053,312,527,727,360
  5. Step 5: Solve for x
    x = 476,053,312,527,727,360/1,005,640,855.35
  6. Step 6: Final answer
    x = 473,383,027.35

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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.