Home / 7,018,545.68-9,686,047.57-3,921,085.70

Finding the Fourth Proportional to 7,018,545.68, 9,686,047.57 and 3,921,085.70

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Solution

The fourth proportional to 7,018,545.68, 9,686,047.57 and 3,921,085.70 is: 5,411,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018,545.68 : 9,686,047.57 = 3,921,085.70 : x
  2. Step 2: Convert to fraction form
    7,018,545.68/9,686,047.57 = 3,921,085.70/x
  3. Step 3: Cross multiply
    7,018,545.68x = 9,686,047.57 × 3,921,085.70
  4. Step 4: Simplify right side
    7,018,545.68x = 37,979,822,630,659.16
  5. Step 5: Solve for x
    x = 37,979,822,630,659.16/7,018,545.68
  6. Step 6: Final answer
    x = 5,411,352.20

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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.