Finding the Fourth Proportional to 745,024,545.72, 1,117,709,734.06 and 253,742,071.68
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Solution
The fourth proportional to 745,024,545.72, 1,117,709,734.06 and 253,742,071.68 is: 380,671,999.45
Step by Step Solution
- Step 1: Write the proportion equation
745,024,545.72 : 1,117,709,734.06 = 253,742,071.68 : x - Step 2: Convert to fraction form
745,024,545.72/1,117,709,734.06 = 253,742,071.68/x - Step 3: Cross multiply
745,024,545.72x = 1,117,709,734.06 × 253,742,071.68 - Step 4: Simplify right side
745,024,545.72x = 283,609,983,457,286,240 - Step 5: Solve for x
x = 283,609,983,457,286,240/745,024,545.72 - Step 6: Final answer
x = 380,671,999.45
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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.