Home / 1,277,220,023.40-1,915,830,035.10-459,226,036.20

Finding the Fourth Proportional to 1,277,220,023.40, 1,915,830,035.10 and 459,226,036.20

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Solution

The fourth proportional to 1,277,220,023.40, 1,915,830,035.10 and 459,226,036.20 is: 688,839,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,220,023.40 : 1,915,830,035.10 = 459,226,036.20 : x
  2. Step 2: Convert to fraction form
    1,277,220,023.40/1,915,830,035.10 = 459,226,036.20/x
  3. Step 3: Cross multiply
    1,277,220,023.40x = 1,915,830,035.10 × 459,226,036.20
  4. Step 4: Simplify right side
    1,277,220,023.40x = 879,799,033,051,879,808
  5. Step 5: Solve for x
    x = 879,799,033,051,879,808/1,277,220,023.40
  6. Step 6: Final answer
    x = 688,839,054.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.