Home / 1,321,410,971.88-1,977,805,085.96-971,564,280.12

Finding the Fourth Proportional to 1,321,410,971.88, 1,977,805,085.96 and 971,564,280.12

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Solution

The fourth proportional to 1,321,410,971.88, 1,977,805,085.96 and 971,564,280.12 is: 1,454,176,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,410,971.88 : 1,977,805,085.96 = 971,564,280.12 : x
  2. Step 2: Convert to fraction form
    1,321,410,971.88/1,977,805,085.96 = 971,564,280.12/x
  3. Step 3: Cross multiply
    1,321,410,971.88x = 1,977,805,085.96 × 971,564,280.12
  4. Step 4: Simplify right side
    1,321,410,971.88x = 1,921,564,774,558,402,048
  5. Step 5: Solve for x
    x = 1,921,564,774,558,402,048/1,321,410,971.88
  6. Step 6: Final answer
    x = 1,454,176,494.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.