Home / 810,119,885.27-1,118,145,291.93-492,512,643.77

Finding the Fourth Proportional to 810,119,885.27, 1,118,145,291.93 and 492,512,643.77

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Solution

The fourth proportional to 810,119,885.27, 1,118,145,291.93 and 492,512,643.77 is: 679,776,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,119,885.27 : 1,118,145,291.93 = 492,512,643.77 : x
  2. Step 2: Convert to fraction form
    810,119,885.27/1,118,145,291.93 = 492,512,643.77/x
  3. Step 3: Cross multiply
    810,119,885.27x = 1,118,145,291.93 × 492,512,643.77
  4. Step 4: Simplify right side
    810,119,885.27x = 550,700,693,841,832,064
  5. Step 5: Solve for x
    x = 550,700,693,841,832,064/810,119,885.27
  6. Step 6: Final answer
    x = 679,776,788.42

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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.