Home / 1,713,293,128.80-2,569,939,693.20-420,828,616.80

Finding the Fourth Proportional to 1,713,293,128.80, 2,569,939,693.20 and 420,828,616.80

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Solution

The fourth proportional to 1,713,293,128.80, 2,569,939,693.20 and 420,828,616.80 is: 631,242,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713,293,128.80 : 2,569,939,693.20 = 420,828,616.80 : x
  2. Step 2: Convert to fraction form
    1,713,293,128.80/2,569,939,693.20 = 420,828,616.80/x
  3. Step 3: Cross multiply
    1,713,293,128.80x = 2,569,939,693.20 × 420,828,616.80
  4. Step 4: Simplify right side
    1,713,293,128.80x = 1,081,504,166,348,772,352
  5. Step 5: Solve for x
    x = 1,081,504,166,348,772,352/1,713,293,128.80
  6. Step 6: Final answer
    x = 631,242,925.20

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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.