Home / 1,155,446,871.81-1,594,516,683.06-660,420,209.13

Finding the Fourth Proportional to 1,155,446,871.81, 1,594,516,683.06 and 660,420,209.13

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Solution

The fourth proportional to 1,155,446,871.81, 1,594,516,683.06 and 660,420,209.13 is: 911,379,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,446,871.81 : 1,594,516,683.06 = 660,420,209.13 : x
  2. Step 2: Convert to fraction form
    1,155,446,871.81/1,594,516,683.06 = 660,420,209.13/x
  3. Step 3: Cross multiply
    1,155,446,871.81x = 1,594,516,683.06 × 660,420,209.13
  4. Step 4: Simplify right side
    1,155,446,871.81x = 1,053,051,041,287,759,104
  5. Step 5: Solve for x
    x = 1,053,051,041,287,759,104/1,155,446,871.81
  6. Step 6: Final answer
    x = 911,379,888.58

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Double scale
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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.