Home / 1,211,192,639.44-1,671,756,831.32-788,858,718.76

Finding the Fourth Proportional to 1,211,192,639.44, 1,671,756,831.32 and 788,858,718.76

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Solution

The fourth proportional to 1,211,192,639.44, 1,671,756,831.32 and 788,858,718.76 is: 1,088,827,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,192,639.44 : 1,671,756,831.32 = 788,858,718.76 : x
  2. Step 2: Convert to fraction form
    1,211,192,639.44/1,671,756,831.32 = 788,858,718.76/x
  3. Step 3: Cross multiply
    1,211,192,639.44x = 1,671,756,831.32 × 788,858,718.76
  4. Step 4: Simplify right side
    1,211,192,639.44x = 1,318,779,952,031,165,440
  5. Step 5: Solve for x
    x = 1,318,779,952,031,165,440/1,211,192,639.44
  6. Step 6: Final answer
    x = 1,088,827,581.25

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Double scale
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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.