Home / 970,554,296.80-1,455,831,445.20-426,358,712.80

Finding the Fourth Proportional to 970,554,296.80, 1,455,831,445.20 and 426,358,712.80

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Solution

The fourth proportional to 970,554,296.80, 1,455,831,445.20 and 426,358,712.80 is: 639,538,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,554,296.80 : 1,455,831,445.20 = 426,358,712.80 : x
  2. Step 2: Convert to fraction form
    970,554,296.80/1,455,831,445.20 = 426,358,712.80/x
  3. Step 3: Cross multiply
    970,554,296.80x = 1,455,831,445.20 × 426,358,712.80
  4. Step 4: Simplify right side
    970,554,296.80x = 620,706,421,029,235,840
  5. Step 5: Solve for x
    x = 620,706,421,029,235,840/970,554,296.80
  6. Step 6: Final answer
    x = 639,538,069.20

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Double scale
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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.