Home / 806,208,047.10-1,209,312,070.65-644,964,911.10

Finding the Fourth Proportional to 806,208,047.10, 1,209,312,070.65 and 644,964,911.10

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Solution

The fourth proportional to 806,208,047.10, 1,209,312,070.65 and 644,964,911.10 is: 967,447,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,208,047.10 : 1,209,312,070.65 = 644,964,911.10 : x
  2. Step 2: Convert to fraction form
    806,208,047.10/1,209,312,070.65 = 644,964,911.10/x
  3. Step 3: Cross multiply
    806,208,047.10x = 1,209,312,070.65 × 644,964,911.10
  4. Step 4: Simplify right side
    806,208,047.10x = 779,963,852,138,934,272
  5. Step 5: Solve for x
    x = 779,963,852,138,934,272/806,208,047.10
  6. Step 6: Final answer
    x = 967,447,366.65

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Double scale
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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.