Home / 261,015,457.32-360,210,574.53-143,549,879.40

Finding the Fourth Proportional to 261,015,457.32, 360,210,574.53 and 143,549,879.40

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Solution

The fourth proportional to 261,015,457.32, 360,210,574.53 and 143,549,879.40 is: 198,103,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,015,457.32 : 360,210,574.53 = 143,549,879.40 : x
  2. Step 2: Convert to fraction form
    261,015,457.32/360,210,574.53 = 143,549,879.40/x
  3. Step 3: Cross multiply
    261,015,457.32x = 360,210,574.53 × 143,549,879.40
  4. Step 4: Simplify right side
    261,015,457.32x = 51,708,184,532,386,208
  5. Step 5: Solve for x
    x = 51,708,184,532,386,208/261,015,457.32
  6. Step 6: Final answer
    x = 198,103,917.15

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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.