Home / 1,109,712,021.48-1,531,336,885.38-607,820,715.72

Finding the Fourth Proportional to 1,109,712,021.48, 1,531,336,885.38 and 607,820,715.72

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Solution

The fourth proportional to 1,109,712,021.48, 1,531,336,885.38 and 607,820,715.72 is: 838,756,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,712,021.48 : 1,531,336,885.38 = 607,820,715.72 : x
  2. Step 2: Convert to fraction form
    1,109,712,021.48/1,531,336,885.38 = 607,820,715.72/x
  3. Step 3: Cross multiply
    1,109,712,021.48x = 1,531,336,885.38 × 607,820,715.72
  4. Step 4: Simplify right side
    1,109,712,021.48x = 930,778,281,680,107,264
  5. Step 5: Solve for x
    x = 930,778,281,680,107,264/1,109,712,021.48
  6. Step 6: Final answer
    x = 838,756,599.61

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Double scale
Find fourth proportional to 1,109,712,022.48, 1,531,336,886.76 and 607,820,716.72
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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.