Finding the Fourth Proportional to 1,157,674,317.12, 1,736,687,835.36 and 720,621,437.76
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Solution
The fourth proportional to 1,157,674,317.12, 1,736,687,835.36 and 720,621,437.76 is: 1,081,041,935.84
Step by Step Solution
- Step 1: Write the proportion equation
1,157,674,317.12 : 1,736,687,835.36 = 720,621,437.76 : x - Step 2: Convert to fraction form
1,157,674,317.12/1,736,687,835.36 = 720,621,437.76/x - Step 3: Cross multiply
1,157,674,317.12x = 1,736,687,835.36 × 720,621,437.76 - Step 4: Simplify right side
1,157,674,317.12x = 1,251,494,484,857,425,152 - Step 5: Solve for x
x = 1,251,494,484,857,425,152/1,157,674,317.12 - Step 6: Final answer
x = 1,081,041,935.84
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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.