Home / 1,210,221,042.02-1,670,876,155.08-987,733,433.52

Finding the Fourth Proportional to 1,210,221,042.02, 1,670,876,155.08 and 987,733,433.52

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Solution

The fourth proportional to 1,210,221,042.02, 1,670,876,155.08 and 987,733,433.52 is: 1,363,701,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,221,042.02 : 1,670,876,155.08 = 987,733,433.52 : x
  2. Step 2: Convert to fraction form
    1,210,221,042.02/1,670,876,155.08 = 987,733,433.52/x
  3. Step 3: Cross multiply
    1,210,221,042.02x = 1,670,876,155.08 × 987,733,433.52
  4. Step 4: Simplify right side
    1,210,221,042.02x = 1,650,380,241,643,864,320
  5. Step 5: Solve for x
    x = 1,650,380,241,643,864,320/1,210,221,042.02
  6. Step 6: Final answer
    x = 1,363,701,492.82

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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.