Home / 1,087,554,091.12-1,501,004,638.95-641,626,475.11

Finding the Fourth Proportional to 1,087,554,091.12, 1,501,004,638.95 and 641,626,475.11

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Solution

The fourth proportional to 1,087,554,091.12, 1,501,004,638.95 and 641,626,475.11 is: 885,550,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,554,091.12 : 1,501,004,638.95 = 641,626,475.11 : x
  2. Step 2: Convert to fraction form
    1,087,554,091.12/1,501,004,638.95 = 641,626,475.11/x
  3. Step 3: Cross multiply
    1,087,554,091.12x = 1,501,004,638.95 × 641,626,475.11
  4. Step 4: Simplify right side
    1,087,554,091.12x = 963,084,315,613,246,720
  5. Step 5: Solve for x
    x = 963,084,315,613,246,720/1,087,554,091.12
  6. Step 6: Final answer
    x = 885,550,726.60

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1.5x scale

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.