Home / 904,670,642.20-1,357,005,969.54-258,438,386.20

Finding the Fourth Proportional to 904,670,642.20, 1,357,005,969.54 and 258,438,386.20

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Solution

The fourth proportional to 904,670,642.20, 1,357,005,969.54 and 258,438,386.20 is: 387,657,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,670,642.20 : 1,357,005,969.54 = 258,438,386.20 : x
  2. Step 2: Convert to fraction form
    904,670,642.20/1,357,005,969.54 = 258,438,386.20/x
  3. Step 3: Cross multiply
    904,670,642.20x = 1,357,005,969.54 × 258,438,386.20
  4. Step 4: Simplify right side
    904,670,642.20x = 350,702,432,831,683,904
  5. Step 5: Solve for x
    x = 350,702,432,831,683,904/904,670,642.20
  6. Step 6: Final answer
    x = 387,657,581.08

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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.