Home / 129,878,281,495.07-194,681,047,869.55-43,698,612,834.34

Finding the Fourth Proportional to 129,878,281,495.07, 194,681,047,869.55 and 43,698,612,834.34

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Solution

The fourth proportional to 129,878,281,495.07, 194,681,047,869.55 and 43,698,612,834.34 is: 65,502,034,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,878,281,495.07 : 194,681,047,869.55 = 43,698,612,834.34 : x
  2. Step 2: Convert to fraction form
    129,878,281,495.07/194,681,047,869.55 = 43,698,612,834.34/x
  3. Step 3: Cross multiply
    129,878,281,495.07x = 194,681,047,869.55 × 43,698,612,834.34
  4. Step 4: Simplify right side
    129,878,281,495.07x = 8,507,291,737,035,076,796,416
  5. Step 5: Solve for x
    x = 8,507,291,737,035,076,796,416/129,878,281,495.07
  6. Step 6: Final answer
    x = 65,502,034,975.40

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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.