Home / 1,267,429,637.49-1,748,821,633.30-731,385,746.02

Finding the Fourth Proportional to 1,267,429,637.49, 1,748,821,633.30 and 731,385,746.02

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Solution

The fourth proportional to 1,267,429,637.49, 1,748,821,633.30 and 731,385,746.02 is: 1,009,178,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,429,637.49 : 1,748,821,633.30 = 731,385,746.02 : x
  2. Step 2: Convert to fraction form
    1,267,429,637.49/1,748,821,633.30 = 731,385,746.02/x
  3. Step 3: Cross multiply
    1,267,429,637.49x = 1,748,821,633.30 × 731,385,746.02
  4. Step 4: Simplify right side
    1,267,429,637.49x = 1,279,063,214,927,035,392
  5. Step 5: Solve for x
    x = 1,279,063,214,927,035,392/1,267,429,637.49
  6. Step 6: Final answer
    x = 1,009,178,874.39

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Double scale
Find fourth proportional to 1,267,429,638.49, 1,748,821,634.68 and 731,385,747.02
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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.