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Finding the Fourth Proportional to 1,668,616,258.93, 2,302,692,959.72 and 905,660,602.40

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Solution

The fourth proportional to 1,668,616,258.93, 2,302,692,959.72 and 905,660,602.40 is: 1,249,813,000.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,616,258.93 : 2,302,692,959.72 = 905,660,602.40 : x
  2. Step 2: Convert to fraction form
    1,668,616,258.93/2,302,692,959.72 = 905,660,602.40/x
  3. Step 3: Cross multiply
    1,668,616,258.93x = 2,302,692,959.72 × 905,660,602.40
  4. Step 4: Simplify right side
    1,668,616,258.93x = 2,085,458,293,050,275,072
  5. Step 5: Solve for x
    x = 2,085,458,293,050,275,072/1,668,616,258.93
  6. Step 6: Final answer
    x = 1,249,813,000.38

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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.