Home / 841,640,957.60-1,161,500,391.20-470,362,978.04

Finding the Fourth Proportional to 841,640,957.60, 1,161,500,391.20 and 470,362,978.04

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Solution

The fourth proportional to 841,640,957.60, 1,161,500,391.20 and 470,362,978.04 is: 649,120,955.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,640,957.60 : 1,161,500,391.20 = 470,362,978.04 : x
  2. Step 2: Convert to fraction form
    841,640,957.60/1,161,500,391.20 = 470,362,978.04/x
  3. Step 3: Cross multiply
    841,640,957.60x = 1,161,500,391.20 × 470,362,978.04
  4. Step 4: Simplify right side
    841,640,957.60x = 546,326,782,999,457,088
  5. Step 5: Solve for x
    x = 546,326,782,999,457,088/841,640,957.60
  6. Step 6: Final answer
    x = 649,120,955.99

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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.