Home / 919,872,409.60-1,379,808,614.40-829,173,145.60

Finding the Fourth Proportional to 919,872,409.60, 1,379,808,614.40 and 829,173,145.60

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Solution

The fourth proportional to 919,872,409.60, 1,379,808,614.40 and 829,173,145.60 is: 1,243,759,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,872,409.60 : 1,379,808,614.40 = 829,173,145.60 : x
  2. Step 2: Convert to fraction form
    919,872,409.60/1,379,808,614.40 = 829,173,145.60/x
  3. Step 3: Cross multiply
    919,872,409.60x = 1,379,808,614.40 × 829,173,145.60
  4. Step 4: Simplify right side
    919,872,409.60x = 1,144,100,249,128,025,600
  5. Step 5: Solve for x
    x = 1,144,100,249,128,025,600/919,872,409.60
  6. Step 6: Final answer
    x = 1,243,759,718.40

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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.