Home / 1,287,630,543.80-1,931,445,815.70-1,024,602,678.20

Finding the Fourth Proportional to 1,287,630,543.80, 1,931,445,815.70 and 1,024,602,678.20

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Solution

The fourth proportional to 1,287,630,543.80, 1,931,445,815.70 and 1,024,602,678.20 is: 1,536,904,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,630,543.80 : 1,931,445,815.70 = 1,024,602,678.20 : x
  2. Step 2: Convert to fraction form
    1,287,630,543.80/1,931,445,815.70 = 1,024,602,678.20/x
  3. Step 3: Cross multiply
    1,287,630,543.80x = 1,931,445,815.70 × 1,024,602,678.20
  4. Step 4: Simplify right side
    1,287,630,543.80x = 1,978,964,555,564,403,712
  5. Step 5: Solve for x
    x = 1,978,964,555,564,403,712/1,287,630,543.80
  6. Step 6: Final answer
    x = 1,536,904,017.30

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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.