Home / 514,920,030.40-771,782,848.80-208,010,641.60

Finding the Fourth Proportional to 514,920,030.40, 771,782,848.80 and 208,010,641.60

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Solution

The fourth proportional to 514,920,030.40, 771,782,848.80 and 208,010,641.60 is: 311,774,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,920,030.40 : 771,782,848.80 = 208,010,641.60 : x
  2. Step 2: Convert to fraction form
    514,920,030.40/771,782,848.80 = 208,010,641.60/x
  3. Step 3: Cross multiply
    514,920,030.40x = 771,782,848.80 × 208,010,641.60
  4. Step 4: Simplify right side
    514,920,030.40x = 160,539,045,554,763,776
  5. Step 5: Solve for x
    x = 160,539,045,554,763,776/514,920,030.40
  6. Step 6: Final answer
    x = 311,774,714.67

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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.