Home / 430,156,077,751.60-644,916,023,188.95-260,137,868,826.02

Finding the Fourth Proportional to 430,156,077,751.60, 644,916,023,188.95 and 260,137,868,826.02

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Solution

The fourth proportional to 430,156,077,751.60, 644,916,023,188.95 and 260,137,868,826.02 is: 390,014,435,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,156,077,751.60 : 644,916,023,188.95 = 260,137,868,826.02 : x
  2. Step 2: Convert to fraction form
    430,156,077,751.60/644,916,023,188.95 = 260,137,868,826.02/x
  3. Step 3: Cross multiply
    430,156,077,751.60x = 644,916,023,188.95 × 260,137,868,826.02
  4. Step 4: Simplify right side
    430,156,077,751.60x = 167,767,079,844,125,519,904,768
  5. Step 5: Solve for x
    x = 167,767,079,844,125,519,904,768/430,156,077,751.60
  6. Step 6: Final answer
    x = 390,014,435,506.84

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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.