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Finding the Fourth Proportional to 677,958,981.60, 1,016,938,472.40 and 524,903,973.60

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Solution

The fourth proportional to 677,958,981.60, 1,016,938,472.40 and 524,903,973.60 is: 787,355,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,958,981.60 : 1,016,938,472.40 = 524,903,973.60 : x
  2. Step 2: Convert to fraction form
    677,958,981.60/1,016,938,472.40 = 524,903,973.60/x
  3. Step 3: Cross multiply
    677,958,981.60x = 1,016,938,472.40 × 524,903,973.60
  4. Step 4: Simplify right side
    677,958,981.60x = 533,795,045,069,473,920
  5. Step 5: Solve for x
    x = 533,795,045,069,473,920/677,958,981.60
  6. Step 6: Final answer
    x = 787,355,960.40

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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.