Home / 20,659,779,368.40-30,989,669,052.60-10,199,426,165.40

Finding the Fourth Proportional to 20,659,779,368.40, 30,989,669,052.60 and 10,199,426,165.40

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Solution

The fourth proportional to 20,659,779,368.40, 30,989,669,052.60 and 10,199,426,165.40 is: 15,299,139,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,779,368.40 : 30,989,669,052.60 = 10,199,426,165.40 : x
  2. Step 2: Convert to fraction form
    20,659,779,368.40/30,989,669,052.60 = 10,199,426,165.40/x
  3. Step 3: Cross multiply
    20,659,779,368.40x = 30,989,669,052.60 × 10,199,426,165.40
  4. Step 4: Simplify right side
    20,659,779,368.40x = 316,076,841,392,175,054,848
  5. Step 5: Solve for x
    x = 316,076,841,392,175,054,848/20,659,779,368.40
  6. Step 6: Final answer
    x = 15,299,139,248.10

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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.