Home / 129,589,547.64-178,835,271.99-70,852,280.88

Finding the Fourth Proportional to 129,589,547.64, 178,835,271.99 and 70,852,280.88

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Solution

The fourth proportional to 129,589,547.64, 178,835,271.99 and 70,852,280.88 is: 97,777,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,589,547.64 : 178,835,271.99 = 70,852,280.88 : x
  2. Step 2: Convert to fraction form
    129,589,547.64/178,835,271.99 = 70,852,280.88/x
  3. Step 3: Cross multiply
    129,589,547.64x = 178,835,271.99 × 70,852,280.88
  4. Step 4: Simplify right side
    129,589,547.64x = 12,670,886,922,286,676
  5. Step 5: Solve for x
    x = 12,670,886,922,286,676/129,589,547.64
  6. Step 6: Final answer
    x = 97,777,075.03

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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.