Home / 1,280,667,335.40-1,767,125,482.38-723,547,106.28

Finding the Fourth Proportional to 1,280,667,335.40, 1,767,125,482.38 and 723,547,106.28

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Solution

The fourth proportional to 1,280,667,335.40, 1,767,125,482.38 and 723,547,106.28 is: 998,384,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,667,335.40 : 1,767,125,482.38 = 723,547,106.28 : x
  2. Step 2: Convert to fraction form
    1,280,667,335.40/1,767,125,482.38 = 723,547,106.28/x
  3. Step 3: Cross multiply
    1,280,667,335.40x = 1,767,125,482.38 × 723,547,106.28
  4. Step 4: Simplify right side
    1,280,667,335.40x = 1,278,598,529,209,698,048
  5. Step 5: Solve for x
    x = 1,278,598,529,209,698,048/1,280,667,335.40
  6. Step 6: Final answer
    x = 998,384,587.37

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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.