Home / 21,038,991,628.04-31,608,833,439.96-13,490,565,389.48

Finding the Fourth Proportional to 21,038,991,628.04, 31,608,833,439.96 and 13,490,565,389.48

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Solution

The fourth proportional to 21,038,991,628.04, 31,608,833,439.96 and 13,490,565,389.48 is: 20,268,130,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,991,628.04 : 31,608,833,439.96 = 13,490,565,389.48 : x
  2. Step 2: Convert to fraction form
    21,038,991,628.04/31,608,833,439.96 = 13,490,565,389.48/x
  3. Step 3: Cross multiply
    21,038,991,628.04x = 31,608,833,439.96 × 13,490,565,389.48
  4. Step 4: Simplify right side
    21,038,991,628.04x = 426,421,034,406,962,397,184
  5. Step 5: Solve for x
    x = 426,421,034,406,962,397,184/21,038,991,628.04
  6. Step 6: Final answer
    x = 20,268,130,809.02

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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.