Home / 970,009,643.40-1,455,014,465.10-279,939,409.80

Finding the Fourth Proportional to 970,009,643.40, 1,455,014,465.10 and 279,939,409.80

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Solution

The fourth proportional to 970,009,643.40, 1,455,014,465.10 and 279,939,409.80 is: 419,909,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,009,643.40 : 1,455,014,465.10 = 279,939,409.80 : x
  2. Step 2: Convert to fraction form
    970,009,643.40/1,455,014,465.10 = 279,939,409.80/x
  3. Step 3: Cross multiply
    970,009,643.40x = 1,455,014,465.10 × 279,939,409.80
  4. Step 4: Simplify right side
    970,009,643.40x = 407,315,890,610,556,672
  5. Step 5: Solve for x
    x = 407,315,890,610,556,672/970,009,643.40
  6. Step 6: Final answer
    x = 419,909,114.70

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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.