Home / 1,071,920,235.68-1,479,260,328.16-619,764,254.18

Finding the Fourth Proportional to 1,071,920,235.68, 1,479,260,328.16 and 619,764,254.18

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Solution

The fourth proportional to 1,071,920,235.68, 1,479,260,328.16 and 619,764,254.18 is: 855,280,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,920,235.68 : 1,479,260,328.16 = 619,764,254.18 : x
  2. Step 2: Convert to fraction form
    1,071,920,235.68/1,479,260,328.16 = 619,764,254.18/x
  3. Step 3: Cross multiply
    1,071,920,235.68x = 1,479,260,328.16 × 619,764,254.18
  4. Step 4: Simplify right side
    1,071,920,235.68x = 916,792,674,020,144,384
  5. Step 5: Solve for x
    x = 916,792,674,020,144,384/1,071,920,235.68
  6. Step 6: Final answer
    x = 855,280,685.54

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Double scale
Find fourth proportional to 1,071,920,236.68, 1,479,260,329.54 and 619,764,255.18
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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.