Home / 1,069,275,851.72-1,475,908,210.32-645,822,251.24

Finding the Fourth Proportional to 1,069,275,851.72, 1,475,908,210.32 and 645,822,251.24

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Solution

The fourth proportional to 1,069,275,851.72, 1,475,908,210.32 and 645,822,251.24 is: 891,420,451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,275,851.72 : 1,475,908,210.32 = 645,822,251.24 : x
  2. Step 2: Convert to fraction form
    1,069,275,851.72/1,475,908,210.32 = 645,822,251.24/x
  3. Step 3: Cross multiply
    1,069,275,851.72x = 1,475,908,210.32 × 645,822,251.24
  4. Step 4: Simplify right side
    1,069,275,851.72x = 953,174,363,012,461,824
  5. Step 5: Solve for x
    x = 953,174,363,012,461,824/1,069,275,851.72
  6. Step 6: Final answer
    x = 891,420,451.96

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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.