Home / 783,013,478.10-1,080,579,079.08-425,802,146.67

Finding the Fourth Proportional to 783,013,478.10, 1,080,579,079.08 and 425,802,146.67

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Solution

The fourth proportional to 783,013,478.10, 1,080,579,079.08 and 425,802,146.67 is: 587,618,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,013,478.10 : 1,080,579,079.08 = 425,802,146.67 : x
  2. Step 2: Convert to fraction form
    783,013,478.10/1,080,579,079.08 = 425,802,146.67/x
  3. Step 3: Cross multiply
    783,013,478.10x = 1,080,579,079.08 × 425,802,146.67
  4. Step 4: Simplify right side
    783,013,478.10x = 460,112,891,518,955,648
  5. Step 5: Solve for x
    x = 460,112,891,518,955,648/783,013,478.10
  6. Step 6: Final answer
    x = 587,618,099.03

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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.