Home / 867,168,021.60-1,300,321,630.80-314,448,386.40

Finding the Fourth Proportional to 867,168,021.60, 1,300,321,630.80 and 314,448,386.40

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Solution

The fourth proportional to 867,168,021.60, 1,300,321,630.80 and 314,448,386.40 is: 471,516,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,168,021.60 : 1,300,321,630.80 = 314,448,386.40 : x
  2. Step 2: Convert to fraction form
    867,168,021.60/1,300,321,630.80 = 314,448,386.40/x
  3. Step 3: Cross multiply
    867,168,021.60x = 1,300,321,630.80 × 314,448,386.40
  4. Step 4: Simplify right side
    867,168,021.60x = 408,884,038,606,076,480
  5. Step 5: Solve for x
    x = 408,884,038,606,076,480/867,168,021.60
  6. Step 6: Final answer
    x = 471,516,509.40

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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.