Home / 129,908,362.60-179,273,692.02-70,369,779.16

Finding the Fourth Proportional to 129,908,362.60, 179,273,692.02 and 70,369,779.16

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Solution

The fourth proportional to 129,908,362.60, 179,273,692.02 and 70,369,779.16 is: 97,110,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,908,362.60 : 179,273,692.02 = 70,369,779.16 : x
  2. Step 2: Convert to fraction form
    129,908,362.60/179,273,692.02 = 70,369,779.16/x
  3. Step 3: Cross multiply
    129,908,362.60x = 179,273,692.02 × 70,369,779.16
  4. Step 4: Simplify right side
    129,908,362.60x = 12,615,450,116,645,254
  5. Step 5: Solve for x
    x = 12,615,450,116,645,254/129,908,362.60
  6. Step 6: Final answer
    x = 97,110,377.38

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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.